java.lang.Object
- org.hibernate.dialect.Dialect
- - org.hibernate.dialect.CockroachDialect

All Implemented Interfaces:

FunctionContributor, TypeContributor, ConversionContext

Direct Known Subclasses:

CockroachDB202SpatialDialect
```
public class CockroachDialect
extends Dialect
```
A SQL dialect for CockroachDB 21.1 and above.

Nested Class Summary
- Nested classes/interfaces inherited from class org.hibernate.dialect.Dialect
  Dialect.SizeStrategy, Dialect.SizeStrategyImpl

Field Summary

Fields
Modifier and Type Field Description

protected PostgreSQLDriverKind driverKind

protected static DatabaseVersion MINIMUM_VERSION
- Fields inherited from class org.hibernate.dialect.Dialect
  CLOSED_QUOTE, FALSE_STRING_VALUES, LEGACY_LOB_MERGE_STRATEGY, LOG_BASE2OF10, NEW_LOCATOR_LOB_MERGE_STRATEGY, QUOTE, STANDARD_MULTI_KEY_LOAD_SIZING_STRATEGY, STREAM_XFER_LOB_MERGE_STRATEGY, TRUE_STRING_VALUES

Constructor Summary

Constructors
Constructor	Description
`CockroachDialect()`
`CockroachDialect(DatabaseVersion version)`
`CockroachDialect(DatabaseVersion version, PostgreSQLDriverKind driverKind)`
`CockroachDialect(DialectResolutionInfo info)`
`CockroachDialect(DialectResolutionInfo info, String versionString)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`appendBooleanValueString(SqlAppender appender, boolean bool)`	Append the SQL literal expression representing the given boolean value to the given `SqlAppender`.
`void`	`appendDatetimeFormat(SqlAppender appender, String format)`	Translate the given datetime format string from the pattern language defined by Java's `DateTimeFormatter` to whatever pattern language is understood by the native datetime formatting function for this database (often the `to_char()` function).
`void`	`appendDateTimeLiteral(SqlAppender appender, TemporalAccessor temporalAccessor, TemporalType precision, TimeZone jdbcTimeZone)`	Append a datetime literal representing the given `java.time` value to the given `SqlAppender`.
`void`	`appendDateTimeLiteral(SqlAppender appender, Calendar calendar, TemporalType precision, TimeZone jdbcTimeZone)`	Append a datetime literal representing the given `Calendar` value to the given `SqlAppender`.
`void`	`appendDateTimeLiteral(SqlAppender appender, Date date, TemporalType precision, TimeZone jdbcTimeZone)`	Append a datetime literal representing the given `Date` value to the given `SqlAppender`.
`IdentifierHelper`	`buildIdentifierHelper(IdentifierHelperBuilder builder, DatabaseMetaData dbMetaData)`	The `IdentifierHelper` indicated by this dialect for handling identifier conversions.
`SQLExceptionConversionDelegate`	`buildSQLExceptionConversionDelegate()`	An instance of `SQLExceptionConversionDelegate` for interpreting dialect-specific error or SQLState codes.
`protected String`	`castType(int sqlTypeCode)`	The SQL type to use in `cast( ... as ... )` expressions when casting to the target type represented by the given JDBC type code.
`protected String`	`columnType(int sqlTypeCode)`	The database column type name for a given JDBC type code defined in `Types` or `SqlTypes`.
`protected void`	`contributeCockroachTypes(TypeContributions typeContributions, ServiceRegistry serviceRegistry)`
`void`	`contributeTypes(TypeContributions typeContributions, ServiceRegistry serviceRegistry)`	A callback which allows the `Dialect` to contribute types.
`String`	`extractPattern(TemporalUnit unit)`	The `extract()` function returns `TemporalUnit.DAY_OF_WEEK` numbered from 0 to 6.
`protected static DatabaseVersion`	`fetchDataBaseVersion(DialectResolutionInfo info)`
`String`	`getCascadeConstraintsString()`	The keyword that specifies that a `drop table` operation should be cascaded to its constraints, typically `" cascade"` where the leading space is required, or the empty string if there is no such keyword in this dialect.
`String`	`getCaseInsensitiveLike()`	The name of the SQL operator that performs case-insensitive `LIKE` comparisons.
`String`	`getCurrentTimestampSelectString()`	The command used to retrieve the current timestamp from the database.
`int`	`getDefaultIntervalSecondScale()`	This is the default scale for a generated column of type `INTERVAL SECOND` mapped to a `Duration`.
`DmlTargetColumnQualifierSupport`	`getDmlTargetColumnQualifierSupport()`	Get the minimum `DmlTargetColumnQualifierSupport` required by this dialect.
`String`	`getForUpdateNowaitString()`	Retrieves the `FOR UPDATE NOWAIT` syntax specific to this dialect.
`String`	`getForUpdateNowaitString(String aliases)`	Get the `FOR UPDATE OF column_list NOWAIT` fragment appropriate for this dialect, given the aliases of the columns to be write locked.
`String`	`getForUpdateSkipLockedString()`	Retrieves the `FOR UPDATE SKIP LOCKED` syntax specific to this dialect.
`String`	`getForUpdateSkipLockedString(String aliases)`	Get the `FOR UPDATE OF column_list SKIP LOCKED` fragment appropriate for this dialect, given the aliases of the columns to be write locked.
`String`	`getForUpdateString(String aliases)`	Get the `FOR UPDATE OF column_list` fragment appropriate for this dialect, given the aliases of the columns to be write locked.
`String`	`getForUpdateString(String aliases, LockOptions lockOptions)`	Get the `FOR UPDATE OF` or `FOR SHARE OF` fragment appropriate for this dialect, given the aliases of the columns to be locked.
`String`	`getForUpdateString(LockOptions lockOptions)`	Given a set of `LockOptions` (lock level, timeout), determine the appropriate `for update` fragment to use to obtain the lock.
`long`	`getFractionalSecondPrecisionInNanos()`	`microsecond` is the smallest unit for an `interval`, and the highest precision for a `timestamp`.
`FunctionalDependencyAnalysisSupport`	`getFunctionalDependencyAnalysisSupport()`	Get this dialect's level of support for primary key functional dependency analysis within `GROUP BY` and `ORDER BY` clauses.
`IdentityColumnSupport`	`getIdentityColumnSupport()`	Get the appropriate `IdentityColumnSupport` for this dialect.
`LimitHandler`	`getLimitHandler()`	Obtain a `LimitHandler` that implements pagination support for `Query.setMaxResults(int)` and `Query.setFirstResult(int)`.
`int`	`getMaxIdentifierLength()`	What is the maximum identifier length supported by this dialect?
`protected DatabaseVersion`	`getMinimumSupportedVersion()`	Get the version of the SQL dialect that is the minimum supported by this implementation.
`NameQualifierSupport`	`getNameQualifierSupport()`	The support for qualified identifiers.
`NationalizationSupport`	`getNationalizationSupport()`	Determines whether this database requires the use of explicitly nationalized character (Unicode) data types.
`String`	`getNativeIdentifierGeneratorStrategy()`	The name identifying the "native" id generation strategy for this dialect.
`String`	`getNoColumnsInsertString()`	The fragment used to insert a row without specifying any column values, usually just `()`, but sometimes `default values`.
`NullOrdering`	`getNullOrdering()`	Returns the default ordering of null.
`String`	`getQueryHintString(String query, List<String> hintList)`	Applies the hints to the query string.
`String`	`getQuerySequencesString()`	Get the `select` command used retrieve the names of all sequences.
`String`	`getReadLockString(int timeout)`	Get the string to append to `SELECT` statements to acquire READ locks for this dialect.
`String`	`getReadLockString(String aliases, int timeout)`	Get the string to append to `SELECT` statements to acquire READ locks for this dialect, given the aliases of the columns to be read locked.
`SequenceSupport`	`getSequenceSupport()`	Get the appropriate `SequenceSupport` for this dialect.
`SqlAstTranslatorFactory`	`getSqlAstTranslatorFactory()`	Return a `SqlAstTranslatorFactory` specific to this dialect, or `null` to use the standard translator.
`TimeZoneSupport`	`getTimeZoneSupport()`	How the dialect supports time zone types like `Types.TIMESTAMP_WITH_TIMEZONE`.
`ViolatedConstraintNameExtractor`	`getViolatedConstraintNameExtractor()`	A `ViolatedConstraintNameExtractor` for extracting the name of a violated constraint from a `SQLException`.
`String`	`getWriteLockString(int timeout)`	Get the string to append to `SELECT` statements to acquire pessimistic WRITE locks for this dialect.
`String`	`getWriteLockString(String aliases, int timeout)`	Get the string to append to `SELECT` statements to acquire WRITE locks for this dialect, given the aliases of the columns to be write locked.
`RowLockStrategy`	`getWriteRowLockStrategy()`	The row lock strategy to use for write locks.
`void`	`initializeFunctionRegistry(FunctionContributions functionContributions)`	Initialize the given registry with any dialect-specific functions.
`boolean`	`isCurrentTimestampSelectStringCallable()`	Is the command returned by `Dialect.getCurrentTimestampSelectString()` treated as callable?
`static DatabaseVersion`	`parseVersion(String versionString)`
`boolean`	`qualifyIndexName()`	Do we need to qualify index names with the schema name?
`protected void`	`registerColumnTypes(TypeContributions typeContributions, ServiceRegistry serviceRegistry)`	Register ANSI-standard column types using the length limits defined by `Dialect.getMaxVarcharLength()`, `Dialect.getMaxNVarcharLength()`, and `Dialect.getMaxVarbinaryLength()`.
`boolean`	`requiresParensForTupleDistinctCounts()`	If `Dialect.supportsTupleDistinctCounts()` is true, does this dialect require the tuple to be delimited with parentheses?
`protected Integer`	`resolveSqlTypeCode(String columnTypeName, TypeConfiguration typeConfiguration)`	Resolves the `SqlTypes` type code for the given column type name as reported by the database, or `null` if it can't be resolved.
`JdbcType`	`resolveSqlTypeDescriptor(String columnTypeName, int jdbcTypeCode, int precision, int scale, JdbcTypeRegistry jdbcTypeRegistry)`	Assigns an appropriate `JdbcType` to a column of a JDBC result set based on the column type name, JDBC type code, precision, and scale.
`boolean`	`supportsCaseInsensitiveLike()`	Does this dialect support case-insensitive `LIKE` comparisons?
`boolean`	`supportsConflictClauseForInsertCTE()`	Does this dialect support the `conflict` clause for insert statements that appear in a CTE?
`boolean`	`supportsCurrentTimestampSelection()`	Does this dialect support some way to retrieve the current timestamp value from the database?
`boolean`	`supportsDistinctFromPredicate()`	Does this dialect support some kind of `distinct from` predicate?
`boolean`	`supportsFromClauseInUpdate()`	Does this dialect support the `from` clause for update statements?
`boolean`	`supportsIfExistsAfterAlterTable()`	For an `alter table`, can the phrase `if exists` be applied?
`boolean`	`supportsIfExistsBeforeConstraintName()`	For dropping a constraint with an `alter table` statement, can the phrase `if exists` be applied before the constraint name?
`boolean`	`supportsIfExistsBeforeTableName()`	For dropping a table, can the phrase `if exists` be applied before the table name?
`boolean`	`supportsLateral()`	Does this dialect support the SQL `lateral` keyword or a proprietary alternative?
`boolean`	`supportsLobValueChangePropagation()`	Does the dialect support propagating changes to LOB values back to the database? Talking about mutating the internal value of the locator, as opposed to supplying a new locator instance.
`boolean`	`supportsNonQueryWithCTE()`	Does this dialect support insert, update, and delete statements with Common Table Expressions (CTEs)?
`boolean`	`supportsNoWait()`	Does this dialect support `NO_WAIT` timeout.
`boolean`	`supportsNullPrecedence()`	Does this dialect support `nulls first` and `nulls last`?
`boolean`	`supportsOffsetInSubquery()`	Does this dialect support `offset` in subqueries?
`boolean`	`supportsOuterJoinForUpdate()`	Does this dialect support `FOR UPDATE` in conjunction with outer-joined rows?
`boolean`	`supportsPartitionBy()`	Does is dialect support `partition by`?
`boolean`	`supportsRecursiveCTE()`	Does this dialect/database support recursive CTEs?
`boolean`	`supportsSkipLocked()`	Does this dialect support `SKIP_LOCKED` timeout.
`boolean`	`supportsStandardArrays()`	Does this database have native support for ANSI SQL standard arrays which are expressed in terms of the element type name: `integer array`.
`boolean`	`supportsTemporalLiteralOffset()`	Does this dialect supports timezone offsets in temporal literals.
`boolean`	`supportsTupleCounts()`	Does this dialect support `count(a,b)`?
`boolean`	`supportsValuesList()`	Does this dialect support `values` lists of form `VALUES (1), (2), (3)`?
`boolean`	`supportsWait()`	Does this dialect support `WAIT` timeout.
`boolean`	`supportsWindowFunctions()`	Does this dialect support window functions like `row_number() over (..)`?
`String`	`timestampaddPattern(TemporalUnit unit, TemporalType temporalType, IntervalType intervalType)`	Obtain a pattern for the SQL equivalent to a `timestampadd()` function call.
`String`	`timestampdiffPattern(TemporalUnit unit, TemporalType fromTemporalType, TemporalType toTemporalType)`	Obtain a pattern for the SQL equivalent to a `timestampdiff()` function call.
`String`	`translateDurationField(TemporalUnit unit)`	Return the name used to identify the given unit of duration as an argument to `#timestampadd()` or `#timestampdiff()`, or of this dialect's equivalent functions.
`String`	`translateExtractField(TemporalUnit unit)`	Return the name used to identify the given field as an argument to the `extract()` function, or of this dialect's equivalent function.
`boolean`	`useConnectionToCreateLob()`	Should BLOB, CLOB, and NCLOB be created solely using respectively `Connection.createBlob()`, `Connection.createClob()`, and `Connection.createNClob()`.
`boolean`	`useInputStreamToInsertBlob()`	Should LOBs (both BLOB and CLOB) be bound using stream operations, that is, using `PreparedStatement.setBinaryStream(int, java.io.InputStream, int)`).

Methods inherited from class org.hibernate.dialect.Dialect
addSqlHintOrComment, appendArrayLiteral, appendBinaryLiteral, appendIntervalLiteral, appendLiteral, appendLockHint, appendUUIDLiteral, applyLocksToSql, augmentPhysicalTableTypes, augmentRecognizedTableTypes, buildStringToBooleanCast, buildStringToBooleanCastDecode, buildStringToBooleanDecode, canBatchTruncate, canCreateCatalog, canCreateSchema, canDisableConstraints, castPattern, checkVersion, closeQuote, contribute, contributeFunctions, createOptionalTableUpdateOperation, currentDate, currentLocalTime, currentLocalTimestamp, currentTime, currentTimestamp, currentTimestampWithTimeZone, defaultScrollMode, doesReadCommittedCauseWritersToBlockReaders, doesRepeatableReadCauseReadersToBlockWriters, doesRoundTemporalOnOverflow, dropConstraints, equivalentTypes, escapeComment, forceLobAsLastValue, generatedAs, getAddColumnString, getAddColumnSuffixString, getAddForeignKeyConstraintString, getAddForeignKeyConstraintString, getAddPrimaryKeyConstraintString, getAggregateSupport, getAlterColumnTypeString, getAlterTableString, getArrayTypeName, getAuxiliaryDatabaseObjectExporter, getBatchLoadSizingStrategy, getBeforeDropStatement, getCallableStatementSupport, getCheckCondition, getCheckCondition, getCheckCondition, getCheckCondition, getCheckCondition, getColumnAliasExtractor, getColumnComment, getCreateCatalogCommand, getCreateEnumTypeCommand, getCreateEnumTypeCommand, getCreateIndexString, getCreateIndexTail, getCreateMultisetTableString, getCreateSchemaCommand, getCreateTableString, getCreateTemporaryTableColumnAnnotation, getCreateUserDefinedTypeExtensionsString, getCreateUserDefinedTypeKindString, getCrossReferenceParentTableFilter, getCurrentSchemaCommand, getDefaultDecimalPrecision, getDefaultLobLength, getDefaultNonContextualLobCreation, getDefaultProperties, getDefaultStatementBatchSize, getDefaultTimestampPrecision, getDefaultUseGetGeneratedKeys, getDisableConstraintsStatement, getDisableConstraintStatement, getDoublePrecision, getDropCatalogCommand, getDropEnumTypeCommand, getDropEnumTypeCommand, getDropForeignKeyString, getDropSchemaCommand, getDropTableString, getDropUniqueKeyString, getDual, getEnableConstraintsStatement, getEnableConstraintStatement, getEnumTypeDeclaration, getEnumTypeDeclaration, getFallbackSchemaManagementTool, getFallbackSqmInsertStrategy, getFallbackSqmMutationStrategy, getFloatPrecision, getForeignKeyExporter, getForUpdateString, getForUpdateString, getFromDualForSelectOnly, getGroupBySelectItemReferenceStrategy, getHqlTranslator, getIndexExporter, getInExpressionCountLimit, getKeywords, getLobMergeStrategy, getLockingStrategy, getLockRowIdentifier, getLowercaseFunction, getMaxAliasLength, getMaxNVarcharCapacity, getMaxNVarcharLength, getMaxVarbinaryCapacity, getMaxVarbinaryLength, getMaxVarcharCapacity, getMaxVarcharLength, getMultiKeyLoadSizingStrategy, getNativeParameterMarkerStrategy, getNullColumnString, getNullColumnString, getParameterCountLimit, getPreferredSqlTypeCodeForArray, getPreferredSqlTypeCodeForBoolean, getQueryHintString, getReadRowLockStrategy, getResultSet, getResultSet, getResultSet, getRowIdColumnString, getSchemaNameResolver, getSelectClauseNullString, getSelectGUIDString, getSequenceExporter, getSequenceInformationExtractor, getSizeStrategy, getSqmTranslatorFactory, getSupportedTemporaryTableKind, getTableCleaner, getTableComment, getTableExporter, getTableMigrator, getTableTypeString, getTemporaryTableAfterUseAction, getTemporaryTableBeforeUseAction, getTemporaryTableCreateCommand, getTemporaryTableCreateOptions, getTemporaryTableDdlTransactionHandling, getTemporaryTableDropCommand, getTemporaryTableExporter, getTemporaryTableTruncateCommand, getTimeoutInSeconds, getTruncateTableStatement, getTruncateTableStatements, getUniqueDelegate, getUniqueKeyExporter, getUserDefinedTypeComment, getUserDefinedTypeExporter, getVersion, hasAlterTable, hasDataTypeBeforeGeneratedAs, hasSelfReferentialForeignKeyBug, initDefaultProperties, inlineLiteral, isAnsiNullOn, isEmptyStringTreatedAsNull, isJdbcLogWarningsEnabledByDefault, isLob, isLockTimeoutParameterized, openQuote, ordinal, prependComment, quote, quoteCollation, registerDefaultKeywords, registerKeyword, registerKeywords, registerResultSetOutParameter, registerResultSetOutParameter, requiresCastForConcatenatingNonStrings, requiresFloatCastingOfIntegerDivision, requiresParensForTupleCounts, resolveSqlTypeCode, resolveSqlTypeLength, rowId, rowIdSqlType, supportsAlterColumnType, supportsBatchUpdates, supportsBindAsCallableArgument, supportsBitType, supportsCascadeDelete, supportsCircularCascadeDeleteConstraints, supportsColumnCheck, supportsCommentOn, supportsExistsInSelect, supportsExpectedLobUsagePattern, supportsFetchClause, supportsFractionalTimestampArithmetic, supportsIfExistsAfterConstraintName, supportsIfExistsAfterTableName, supportsIfExistsAfterTypeName, supportsIfExistsBeforeTypeName, supportsInsertReturning, supportsInsertReturningGeneratedKeys, supportsInsertReturningRowId, supportsIsTrue, supportsJdbcConnectionLobCreation, supportsLockTimeouts, supportsMaterializedLobAccess, supportsNamedParameters, supportsNationalizedMethods, supportsNoColumnsInsert, supportsOrderByInSubquery, supportsOrdinalSelectItemReference, supportsParametersInInsertSelect, supportsPredicateAsExpression, supportsRefCursors, supportsResultSetPositionQueryMethodsOnForwardOnlyCursor, supportsStandardCurrentTimestampFunction, supportsSubqueryInSelect, supportsSubqueryOnMutatingTable, supportsSubselectAsInPredicateLHS, supportsTableCheck, supportsTemporaryTablePrimaryKey, supportsTemporaryTables, supportsTruncateWithCast, supportsTupleDistinctCounts, supportsUnboundedLobLocatorMaterialization, supportsUnionAll, supportsUnionInSubquery, supportsUpdateReturning, supportsValuesListForInsert, toBooleanValueString, toQuotedIdentifier, toString, transformSelectString, trimPattern, trimPattern, unquoteGetGeneratedKeys, useArrayForMultiValuedParameters, useCrossReferenceForeignKeys, useFollowOnLocking, useMaterializedLobWhenCapacityExceeded

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - MINIMUM_VERSION
```
protected static final DatabaseVersion MINIMUM_VERSION
```
  - driverKind
```
protected final PostgreSQLDriverKind driverKind
```
- Constructor Detail
  - CockroachDialect
```
public CockroachDialect()
```
  - CockroachDialect
```
public CockroachDialect(DialectResolutionInfo info)
```
  - CockroachDialect
```
public CockroachDialect(DialectResolutionInfo info,
                        String versionString)
```
  - CockroachDialect
```
public CockroachDialect(DatabaseVersion version)
```
  - CockroachDialect
```
public CockroachDialect(DatabaseVersion version,
                        PostgreSQLDriverKind driverKind)
```
- Method Detail
  - fetchDataBaseVersion
```
protected static DatabaseVersion fetchDataBaseVersion(DialectResolutionInfo info)
```
  - parseVersion
```
public static DatabaseVersion parseVersion(String versionString)
```
  - getMinimumSupportedVersion
```
protected DatabaseVersion getMinimumSupportedVersion()
```
    Description copied from class: Dialect
    
    Get the version of the SQL dialect that is the minimum supported by this implementation.
    
    Overrides:
    
    getMinimumSupportedVersion in class Dialect
  - columnType
```
protected String columnType(int sqlTypeCode)
```
    Description copied from class: Dialect
    The database column type name for a given JDBC type code defined in Types or SqlTypes. This default implementation returns the ANSI-standard type name.
    This method may be overridden by concrete Dialects as an alternative to Dialect.registerColumnTypes(TypeContributions, ServiceRegistry) for simple registrations.
    Note that:
    
    Implementations of this method are expected to define a sensible mapping forTypes.NCLOB Types.NCHAR, and Types.NVARCHAR. On some database, these types are simply remapped to CLOB, CHAR, and VARCHAR.
    Mappings for Types.TIMESTAMP and Types.TIMESTAMP_WITH_TIMEZONE should support explicit specification of precision if possible.
    As specified by DdlTypeRegistry.getDescriptor(int), this method never receives Types.LONGVARCHAR, Types.LONGNVARCHAR, nor Types.LONGVARBINARY, which are considered synonyms for their non-LONG counterparts.
    On the other hand, the types SqlTypes.LONG32VARCHAR, SqlTypes.LONG32NVARCHAR, and SqlTypes.LONG32VARBINARY are not synonyms, and implementations of this method must define sensible mappings, for example to database-native TEXT or CLOB types.
    Overrides:
    
    columnType in class Dialect
    
    Parameters:
    
    sqlTypeCode - a SQL type code
    
    Returns:
    
    a column type name, with $l, $p, $s placeholders for length, precision, scale
    
    See Also:
    
    SqlTypes
  - castType
```
protected String castType(int sqlTypeCode)
```
    Description copied from class: Dialect
    
    The SQL type to use in cast( ... as ... ) expressions when casting to the target type represented by the given JDBC type code.
    
    Overrides:
    
    castType in class Dialect
    
    Parameters:
    
    sqlTypeCode - The JDBC type code representing the target type
    
    Returns:
    
    The SQL type to use in cast()
  - registerColumnTypes
```
protected void registerColumnTypes(TypeContributions typeContributions,
                                   ServiceRegistry serviceRegistry)
```
    Description copied from class: Dialect
    
    Register ANSI-standard column types using the length limits defined by Dialect.getMaxVarcharLength(), Dialect.getMaxNVarcharLength(), and Dialect.getMaxVarbinaryLength().
    This method is always called when a Dialect is instantiated.
    
    Overrides:
    
    registerColumnTypes in class Dialect
  - resolveSqlTypeDescriptor
```
public JdbcType resolveSqlTypeDescriptor(String columnTypeName,
                                         int jdbcTypeCode,
                                         int precision,
                                         int scale,
                                         JdbcTypeRegistry jdbcTypeRegistry)
```
    Description copied from class: Dialect
    
    Assigns an appropriate JdbcType to a column of a JDBC result set based on the column type name, JDBC type code, precision, and scale.
    
    Overrides:
    
    resolveSqlTypeDescriptor in class Dialect
    
    Parameters:
    
    columnTypeName - the column type name
    
    jdbcTypeCode - the type code
    
    precision - the precision or 0
    
    scale - the scale or 0
    
    Returns:
    
    an appropriate instance of JdbcType
  - resolveSqlTypeCode
```
protected Integer resolveSqlTypeCode(String columnTypeName,
                                     TypeConfiguration typeConfiguration)
```
    Description copied from class: Dialect
    
    Resolves the SqlTypes type code for the given column type name as reported by the database, or null if it can't be resolved.
    
    Overrides:
    
    resolveSqlTypeCode in class Dialect
  - contributeTypes
```
public void contributeTypes(TypeContributions typeContributions,
                            ServiceRegistry serviceRegistry)
```
    Description copied from class: Dialect
    
    A callback which allows the Dialect to contribute types.
    
    Overrides:
    
    contributeTypes in class Dialect
    
    Parameters:
    
    typeContributions - Callback to contribute the types
    
    serviceRegistry - The service registry
  - contributeCockroachTypes
```
protected void contributeCockroachTypes(TypeContributions typeContributions,
                                        ServiceRegistry serviceRegistry)
```
  - initializeFunctionRegistry
```
public void initializeFunctionRegistry(FunctionContributions functionContributions)
```
    Description copied from class: Dialect
    Initialize the given registry with any dialect-specific functions.
    Support for certain SQL functions is required, and if the database does not support a required function, then the dialect must define a way to emulate it.
    These required functions include the functions defined by the JPA query language specification:
    
    avg(arg) - aggregate function
    count([distinct ]arg) - aggregate function
    max(arg) - aggregate function
    min(arg) - aggregate function
    sum(arg) - aggregate function
    
    coalesce(arg0, arg1, ...)
    nullif(arg0, arg1)
    
    lower(arg)
    upper(arg)
    length(arg)
    concat(arg0, arg1, ...)
    locate(pattern, string[, start])
    substring(string, start[, length])
    trim([[spec ][character ]from] string)
    
    abs(arg)
    mod(arg0, arg1)
    sqrt(arg)
    
    current date
    current time
    current timestamp
    Along with an additional set of functions defined by ANSI SQL:
    
    any(arg) - aggregate function
    every(arg) - aggregate function
    
    var_samp(arg) - aggregate function
    var_pop(arg) - aggregate function
    stddev_samp(arg) - aggregate function
    stddev_pop(arg) - aggregate function
    
    cast(arg as Type)
    extract(field from arg)
    
    ln(arg)
    exp(arg)
    power(arg0, arg1)
    floor(arg)
    ceiling(arg)
    
    position(pattern in string)
    substring(string from start[ for length])
    overlay(string placing replacement from start[ for length])
    And the following functions for working with java.time types:
    
    local date
    local time
    local datetime
    offset datetime
    instant
    And a number of additional "standard" functions:
    
    left(string, length)
    right(string, length)
    replace(string, pattern, replacement)
    pad(string with length spec[ character])
    repeat(string, times)
    
    pi
    log10(arg)
    log(base, arg)
    sign(arg)
    sin(arg)
    cos(arg)
    tan(arg)
    asin(arg)
    acos(arg)
    atan(arg)
    atan2(arg0, arg1)
    round(arg0[, arg1])
    truncate(arg0[, arg1])
    sinh(arg)
    tanh(arg)
    cosh(arg)
    least(arg0, arg1, ...)
    greatest(arg0, arg1, ...)
    degrees(arg)
    radians(arg)
    bitand(arg1, arg1)
    bitor(arg1, arg1)
    bitxor(arg1, arg1)
    
    format(datetime as pattern)
    collate(string as collation)
    str(arg) - synonym of cast(a as String)
    ifnull(arg0, arg1) - synonym of coalesce(a, b)
    Finally, the following functions are defined as abbreviations for extract(), and desugared by the parser:
    
    second(arg) - synonym of extract(second from a)
    minute(arg) - synonym of extract(minute from a)
    hour(arg) - synonym of extract(hour from a)
    day(arg) - synonym of extract(day from a)
    month(arg) - synonym of extract(month from a)
    year(arg) - synonym of extract(year from a)
    Note that according to this definition, the second() function returns a floating point value, contrary to the integer type returned by the native function with this name on many databases. Thus, we don't just naively map these HQL functions to the native SQL functions with the same names.
    Overrides:
    
    initializeFunctionRegistry in class Dialect
  - getTimeZoneSupport
```
public TimeZoneSupport getTimeZoneSupport()
```
    Description copied from class: Dialect
    
    How the dialect supports time zone types like Types.TIMESTAMP_WITH_TIMEZONE.
    
    Overrides:
    
    getTimeZoneSupport in class Dialect
  - appendBooleanValueString
```
public void appendBooleanValueString(SqlAppender appender,
                                     boolean bool)
```
    Description copied from class: Dialect
    
    Append the SQL literal expression representing the given boolean value to the given SqlAppender.
    
    Overrides:
    
    appendBooleanValueString in class Dialect
    
    Parameters:
    
    appender - The SqlAppender to append the literal expression to
    
    bool - The boolean value
  - getCascadeConstraintsString
```
public String getCascadeConstraintsString()
```
    Description copied from class: Dialect
    
    The keyword that specifies that a drop table operation should be cascaded to its constraints, typically " cascade" where the leading space is required, or the empty string if there is no such keyword in this dialect.
    
    Overrides:
    
    getCascadeConstraintsString in class Dialect
    
    Returns:
    
    The cascade drop keyword, if any, with a leading space
  - supportsCurrentTimestampSelection
```
public boolean supportsCurrentTimestampSelection()
```
    Description copied from class: Dialect
    
    Does this dialect support some way to retrieve the current timestamp value from the database?
    
    Overrides:
    
    supportsCurrentTimestampSelection in class Dialect
    
    Returns:
    
    True if the current timestamp can be retrieved; false otherwise.
  - isCurrentTimestampSelectStringCallable
```
public boolean isCurrentTimestampSelectStringCallable()
```
    Description copied from class: Dialect
    
    Is the command returned by Dialect.getCurrentTimestampSelectString() treated as callable?
    Typically, this indicates the use of the JDBC escape syntax.
    
    Overrides:
    
    isCurrentTimestampSelectStringCallable in class Dialect
    
    Returns:
    
    if the Dialect.getCurrentTimestampSelectString() is treated as callable; false otherwise.
  - getCurrentTimestampSelectString
```
public String getCurrentTimestampSelectString()
```
    Description copied from class: Dialect
    
    The command used to retrieve the current timestamp from the database.
    
    Overrides:
    
    getCurrentTimestampSelectString in class Dialect
  - supportsDistinctFromPredicate
```
public boolean supportsDistinctFromPredicate()
```
    Description copied from class: Dialect
    Does this dialect support some kind of distinct from predicate?
    That is, does it support syntax like:
    ... where FIRST_NAME IS DISTINCT FROM LAST_NAME
    Overrides:
    
    supportsDistinctFromPredicate in class Dialect
    
    Returns:
    
    True if this SQL dialect is known to support some kind of distinct from predicate; false otherwise
  - supportsIfExistsBeforeTableName
```
public boolean supportsIfExistsBeforeTableName()
```
    Description copied from class: Dialect
    
    For dropping a table, can the phrase if exists be applied before the table name?
    
    Overrides:
    
    supportsIfExistsBeforeTableName in class Dialect
    
    Returns:
    
    true if if exists can be applied before the table name
  - supportsIfExistsBeforeConstraintName
```
public boolean supportsIfExistsBeforeConstraintName()
```
    Description copied from class: Dialect
    
    For dropping a constraint with an alter table statement, can the phrase if exists be applied before the constraint name?
    
    Overrides:
    
    supportsIfExistsBeforeConstraintName in class Dialect
    
    Returns:
    
    true if if exists can be applied before the constraint name
  - supportsIfExistsAfterAlterTable
```
public boolean supportsIfExistsAfterAlterTable()
```
    Description copied from class: Dialect
    
    For an alter table, can the phrase if exists be applied?
    
    Overrides:
    
    supportsIfExistsAfterAlterTable in class Dialect
    
    Returns:
    
    true if if exists can be applied after alter table
  - qualifyIndexName
```
public boolean qualifyIndexName()
```
    Description copied from class: Dialect
    
    Do we need to qualify index names with the schema name?
    
    Overrides:
    
    qualifyIndexName in class Dialect
    
    Returns:
    
    true if we do
  - getIdentityColumnSupport
```
public IdentityColumnSupport getIdentityColumnSupport()
```
    Description copied from class: Dialect
    
    Get the appropriate IdentityColumnSupport for this dialect.
    
    Overrides:
    
    getIdentityColumnSupport in class Dialect
    
    Returns:
    
    the IdentityColumnSupport
  - supportsValuesList
```
public boolean supportsValuesList()
```
    Description copied from class: Dialect
    
    Does this dialect support values lists of form VALUES (1), (2), (3)?
    
    Overrides:
    
    supportsValuesList in class Dialect
    
    Returns:
    
    true if values list are supported
  - supportsPartitionBy
```
public boolean supportsPartitionBy()
```
    Description copied from class: Dialect
    
    Does is dialect support partition by?
    
    Overrides:
    
    supportsPartitionBy in class Dialect
  - supportsNonQueryWithCTE
```
public boolean supportsNonQueryWithCTE()
```
    Description copied from class: Dialect
    
    Does this dialect support insert, update, and delete statements with Common Table Expressions (CTEs)?
    
    Overrides:
    
    supportsNonQueryWithCTE in class Dialect
    
    Returns:
    
    true if non-query statements are supported with CTE
  - supportsRecursiveCTE
```
public boolean supportsRecursiveCTE()
```
    Description copied from class: Dialect
    
    Does this dialect/database support recursive CTEs?
    
    Overrides:
    
    supportsRecursiveCTE in class Dialect
    
    Returns:
    
    true if recursive CTEs are supported
  - supportsConflictClauseForInsertCTE
```
public boolean supportsConflictClauseForInsertCTE()
```
    Description copied from class: Dialect
    
    Does this dialect support the conflict clause for insert statements that appear in a CTE?
    
    Overrides:
    
    supportsConflictClauseForInsertCTE in class Dialect
    
    Returns:
    
    true if conflict clause is supported
  - getNoColumnsInsertString
```
public String getNoColumnsInsertString()
```
    Description copied from class: Dialect
    
    The fragment used to insert a row without specifying any column values, usually just (), but sometimes default values.
    
    Overrides:
    
    getNoColumnsInsertString in class Dialect
    
    Returns:
    
    The appropriate empty values clause.
  - getCaseInsensitiveLike
```
public String getCaseInsensitiveLike()
```
    Description copied from class: Dialect
    
    The name of the SQL operator that performs case-insensitive LIKE comparisons.
    
    Overrides:
    
    getCaseInsensitiveLike in class Dialect
    
    Returns:
    
    The dialect-specific case-insensitive like operator.
  - supportsCaseInsensitiveLike
```
public boolean supportsCaseInsensitiveLike()
```
    Description copied from class: Dialect
    
    Does this dialect support case-insensitive LIKE comparisons?
    
    Overrides:
    
    supportsCaseInsensitiveLike in class Dialect
    
    Returns:
    
    true if the database supports case-insensitive like comparisons, false otherwise. The default is false.
  - supportsNullPrecedence
```
public boolean supportsNullPrecedence()
```
    Description copied from class: Dialect
    
    Does this dialect support nulls first and nulls last?
    
    Overrides:
    
    supportsNullPrecedence in class Dialect
  - getNullOrdering
```
public NullOrdering getNullOrdering()
```
    Description copied from class: Dialect
    
    Returns the default ordering of null.
    
    Overrides:
    
    getNullOrdering in class Dialect
  - supportsTupleCounts
```
public boolean supportsTupleCounts()
```
    Description copied from class: Dialect
    
    Does this dialect support count(a,b)?
    
    Overrides:
    
    supportsTupleCounts in class Dialect
    
    Returns:
    
    True if the database supports counting tuples; false otherwise.
  - requiresParensForTupleDistinctCounts
```
public boolean requiresParensForTupleDistinctCounts()
```
    Description copied from class: Dialect
    
    If Dialect.supportsTupleDistinctCounts() is true, does this dialect require the tuple to be delimited with parentheses?
    
    Overrides:
    
    requiresParensForTupleDistinctCounts in class Dialect
    
    Returns:
    
    boolean
  - getNativeIdentifierGeneratorStrategy
```
public String getNativeIdentifierGeneratorStrategy()
```
    Description copied from class: Dialect
    
    The name identifying the "native" id generation strategy for this dialect.
    This is the name of the id generation strategy which should be used when "native" is specified in hbm.xml.
    
    Overrides:
    
    getNativeIdentifierGeneratorStrategy in class Dialect
    
    Returns:
    
    The name identifying the native generator strategy.
  - getSequenceSupport
```
public SequenceSupport getSequenceSupport()
```
    Description copied from class: Dialect
    
    Get the appropriate SequenceSupport for this dialect.
    
    Overrides:
    
    getSequenceSupport in class Dialect
  - getQuerySequencesString
```
public String getQuerySequencesString()
```
    Description copied from class: Dialect
    
    Get the select command used retrieve the names of all sequences.
    
    Overrides:
    
    getQuerySequencesString in class Dialect
    
    Returns:
    
    The select command; or null if sequences are not supported.
  - supportsLobValueChangePropagation
```
public boolean supportsLobValueChangePropagation()
```
    Description copied from class: Dialect
    Does the dialect support propagating changes to LOB values back to the database? Talking about mutating the internal value of the locator, as opposed to supplying a new locator instance.
    
    For BLOBs, the internal value might be changed by: Blob.setBinaryStream(long), Blob.setBytes(long, byte[]), Blob.setBytes(long, byte[], int, int), or Blob.truncate(long).
    For CLOBs, the internal value might be changed by: Clob.setAsciiStream(long), Clob.setCharacterStream(long), Clob.setString(long, String), Clob.setString(long, String, int, int), or Clob.truncate(long).
    Overrides:
    
    supportsLobValueChangePropagation in class Dialect
    
    Returns:
    
    True if the changes are propagated back to the database; false otherwise.
  - getSqlAstTranslatorFactory
```
public SqlAstTranslatorFactory getSqlAstTranslatorFactory()
```
    Description copied from class: Dialect
    
    Return a SqlAstTranslatorFactory specific to this dialect, or null to use the standard translator.
    
    Overrides:
    
    getSqlAstTranslatorFactory in class Dialect
    
    See Also:
    
    StandardSqlAstTranslatorFactory, JdbcEnvironment.getSqlAstTranslatorFactory()
  - getNationalizationSupport
```
public NationalizationSupport getNationalizationSupport()
```
    Description copied from class: Dialect
    
    Determines whether this database requires the use of explicitly nationalized character (Unicode) data types.
    That is, whether the use of Types.NCHAR, Types.NVARCHAR, and Types.NCLOB is required for nationalized character data.
    
    Overrides:
    
    getNationalizationSupport in class Dialect
  - getMaxIdentifierLength
```
public int getMaxIdentifierLength()
```
    Description copied from class: Dialect
    
    What is the maximum identifier length supported by this dialect?
    
    Overrides:
    
    getMaxIdentifierLength in class Dialect
    
    Returns:
    
    The maximum length.
  - supportsStandardArrays
```
public boolean supportsStandardArrays()
```
    Description copied from class: Dialect
    
    Does this database have native support for ANSI SQL standard arrays which are expressed in terms of the element type name: integer array.
    
    Overrides:
    
    supportsStandardArrays in class Dialect
    
    Returns:
    
    boolean
  - supportsTemporalLiteralOffset
```
public boolean supportsTemporalLiteralOffset()
```
    Description copied from class: Dialect
    
    Does this dialect supports timezone offsets in temporal literals.
    
    Overrides:
    
    supportsTemporalLiteralOffset in class Dialect
  - appendDateTimeLiteral
```
public void appendDateTimeLiteral(SqlAppender appender,
                                  TemporalAccessor temporalAccessor,
                                  TemporalType precision,
                                  TimeZone jdbcTimeZone)
```
    Description copied from class: Dialect
    
    Append a datetime literal representing the given java.time value to the given SqlAppender.
    
    Overrides:
    
    appendDateTimeLiteral in class Dialect
  - appendDateTimeLiteral
```
public void appendDateTimeLiteral(SqlAppender appender,
                                  Date date,
                                  TemporalType precision,
                                  TimeZone jdbcTimeZone)
```
    Description copied from class: Dialect
    
    Append a datetime literal representing the given Date value to the given SqlAppender.
    
    Overrides:
    
    appendDateTimeLiteral in class Dialect
  - appendDateTimeLiteral
```
public void appendDateTimeLiteral(SqlAppender appender,
                                  Calendar calendar,
                                  TemporalType precision,
                                  TimeZone jdbcTimeZone)
```
    Description copied from class: Dialect
    
    Append a datetime literal representing the given Calendar value to the given SqlAppender.
    
    Overrides:
    
    appendDateTimeLiteral in class Dialect
  - extractPattern
```
public String extractPattern(TemporalUnit unit)
```
    The extract() function returns TemporalUnit.DAY_OF_WEEK numbered from 0 to 6. This isn't consistent with what most other databases do, so here we adjust the result by generating (extract(dayofweek,arg)+1)).
    
    Overrides:
    
    extractPattern in class Dialect
    
    Parameters:
    
    unit - the first argument
  - translateExtractField
```
public String translateExtractField(TemporalUnit unit)
```
    Description copied from class: Dialect
    
    Return the name used to identify the given field as an argument to the extract() function, or of this dialect's equivalent function.
    This method does not need to handle TemporalUnit.NANOSECOND, TemporalUnit.NATIVE, TemporalUnit.OFFSET, TemporalUnit.DATE, TemporalUnit.TIME, TemporalUnit.WEEK_OF_YEAR, nor TemporalUnit.WEEK_OF_MONTH, which are already desugared by ExtractFunction.
    
    Overrides:
    
    translateExtractField in class Dialect
  - getFractionalSecondPrecisionInNanos
```
public long getFractionalSecondPrecisionInNanos()
```
    microsecond is the smallest unit for an interval, and the highest precision for a timestamp.
    
    Overrides:
    
    getFractionalSecondPrecisionInNanos in class Dialect
    
    Returns:
    
    the precision, specified as a quantity of nanoseconds
    
    See Also:
    
    TemporalUnit.NATIVE
  - timestampaddPattern
```
public String timestampaddPattern(TemporalUnit unit,
                                  TemporalType temporalType,
                                  IntervalType intervalType)
```
    Description copied from class: Dialect
    
    Obtain a pattern for the SQL equivalent to a timestampadd() function call. The resulting pattern must contain ?1, ?2, and ?3 placeholders for the arguments.
    
    Overrides:
    
    timestampaddPattern in class Dialect
    
    Parameters:
    
    unit - The unit to add to the temporal
    
    temporalType - The type of the temporal
    
    intervalType - The type of interval to add or null if it's not a native interval
  - timestampdiffPattern
```
public String timestampdiffPattern(TemporalUnit unit,
                                   TemporalType fromTemporalType,
                                   TemporalType toTemporalType)
```
    Description copied from class: Dialect
    
    Obtain a pattern for the SQL equivalent to a timestampdiff() function call. The resulting pattern must contain ?1, ?2, and ?3 placeholders for the arguments.
    
    Overrides:
    
    timestampdiffPattern in class Dialect
    
    Parameters:
    
    unit - the first argument
    
    fromTemporalType - true if the first argument is a timestamp, false if a date
    
    toTemporalType - true if the second argument is
  - translateDurationField
```
public String translateDurationField(TemporalUnit unit)
```
    Description copied from class: Dialect
    
    Return the name used to identify the given unit of duration as an argument to #timestampadd() or #timestampdiff(), or of this dialect's equivalent functions.
    This method does not need to handle TemporalUnit.NANOSECOND, TemporalUnit.NATIVE, TemporalUnit.OFFSET, TemporalUnit.DAY_OF_WEEK, TemporalUnit.DAY_OF_MONTH, TemporalUnit.DAY_OF_YEAR, TemporalUnit.DATE, TemporalUnit.TIME, TemporalUnit.TIMEZONE_HOUR, TemporalUnit.TIMEZONE_MINUTE, TemporalUnit.WEEK_OF_YEAR, nor TemporalUnit.WEEK_OF_MONTH, which are not units of duration.
    
    Overrides:
    
    translateDurationField in class Dialect
  - appendDatetimeFormat
```
public void appendDatetimeFormat(SqlAppender appender,
                                 String format)
```
    Description copied from class: Dialect
    Translate the given datetime format string from the pattern language defined by Java's DateTimeFormatter to whatever pattern language is understood by the native datetime formatting function for this database (often the to_char() function).
    Since it's never possible to translate every pattern letter sequences understood by DateTimeFormatter, only the following subset of pattern letters is accepted by Hibernate:
    
    G: era
    
    y: year of era
    
    Y: year of week-based year
    
    M: month of year
    
    w: week of week-based year (ISO week number)
    
    W: week of month
    
    E: day of week (name)
    
    e: day of week (number)
    
    d: day of month
    
    D: day of year
    
    a: AM/PM
    
    H: hour of day (24 hour time)
    
    h: hour of AM/PM (12 hour time)
    
    m: minutes
    
    s: seconds
    
    z,Z,x: timezone offset
    
    In addition, punctuation characters and single-quoted literal strings are accepted.
    Appends a pattern accepted by the function that formats dates and times in this dialect to a SQL fragment that is being constructed.
    Overrides:
    
    appendDatetimeFormat in class Dialect
  - getLimitHandler
```
public LimitHandler getLimitHandler()
```
    Description copied from class: Dialect
    
    Obtain a LimitHandler that implements pagination support for Query.setMaxResults(int) and Query.setFirstResult(int).
    
    Overrides:
    
    getLimitHandler in class Dialect
  - getForUpdateString
```
public String getForUpdateString(String aliases)
```
    Description copied from class: Dialect
    
    Get the FOR UPDATE OF column_list fragment appropriate for this dialect, given the aliases of the columns to be write locked.
    
    Overrides:
    
    getForUpdateString in class Dialect
    
    Parameters:
    
    aliases - The columns to be write locked.
    
    Returns:
    
    The appropriate FOR UPDATE OF column_list clause string.
  - getForUpdateString
```
public String getForUpdateString(LockOptions lockOptions)
```
    Description copied from class: Dialect
    
    Given a set of LockOptions (lock level, timeout), determine the appropriate for update fragment to use to obtain the lock.
    
    Overrides:
    
    getForUpdateString in class Dialect
    
    Parameters:
    
    lockOptions - contains the lock mode to apply.
    
    Returns:
    
    The appropriate for update fragment.
  - getForUpdateString
```
public String getForUpdateString(String aliases,
                                 LockOptions lockOptions)
```
    Description copied from class: Dialect
    
    Get the FOR UPDATE OF or FOR SHARE OF fragment appropriate for this dialect, given the aliases of the columns to be locked.
    
    Overrides:
    
    getForUpdateString in class Dialect
    
    Parameters:
    
    aliases - The columns to be locked.
    
    lockOptions - the lock options to apply
    
    Returns:
    
    The appropriate FOR UPDATE OF column_list clause string.
  - getWriteLockString
```
public String getWriteLockString(int timeout)
```
    Description copied from class: Dialect
    
    Get the string to append to SELECT statements to acquire pessimistic WRITE locks for this dialect.
    Location of the returned string is treated the same as Dialect.getForUpdateString().
    
    Overrides:
    
    getWriteLockString in class Dialect
    
    Parameters:
    
    timeout - in milliseconds, -1 for indefinite wait and 0 for no wait.
    
    Returns:
    
    The appropriate LOCK clause string.
  - getWriteLockString
```
public String getWriteLockString(String aliases,
                                 int timeout)
```
    Description copied from class: Dialect
    
    Get the string to append to SELECT statements to acquire WRITE locks for this dialect, given the aliases of the columns to be write locked.
    Location of the returned string is treated the same as Dialect.getForUpdateString().
    
    Overrides:
    
    getWriteLockString in class Dialect
    
    Parameters:
    
    aliases - The columns to be read locked.
    
    timeout - in milliseconds, -1 for indefinite wait and 0 for no wait.
    
    Returns:
    
    The appropriate LOCK clause string.
  - getReadLockString
```
public String getReadLockString(int timeout)
```
    Description copied from class: Dialect
    
    Get the string to append to SELECT statements to acquire READ locks for this dialect.
    Location of the returned string is treated the same as Dialect.getForUpdateString().
    
    Overrides:
    
    getReadLockString in class Dialect
    
    Parameters:
    
    timeout - in milliseconds, -1 for indefinite wait and 0 for no wait.
    
    Returns:
    
    The appropriate LOCK clause string.
  - getReadLockString
```
public String getReadLockString(String aliases,
                                int timeout)
```
    Description copied from class: Dialect
    
    Get the string to append to SELECT statements to acquire READ locks for this dialect, given the aliases of the columns to be read locked.
    Location of the returned string is treated the same as Dialect.getForUpdateString().
    
    Overrides:
    
    getReadLockString in class Dialect
    
    Parameters:
    
    aliases - The columns to be read locked.
    
    timeout - in milliseconds, -1 for indefinite wait and 0 for no wait.
    
    Returns:
    
    The appropriate LOCK clause string.
  - getForUpdateNowaitString
```
public String getForUpdateNowaitString()
```
    Description copied from class: Dialect
    
    Retrieves the FOR UPDATE NOWAIT syntax specific to this dialect.
    
    Overrides:
    
    getForUpdateNowaitString in class Dialect
    
    Returns:
    
    The appropriate FOR UPDATE NOWAIT clause string.
  - getForUpdateNowaitString
```
public String getForUpdateNowaitString(String aliases)
```
    Description copied from class: Dialect
    
    Get the FOR UPDATE OF column_list NOWAIT fragment appropriate for this dialect, given the aliases of the columns to be write locked.
    
    Overrides:
    
    getForUpdateNowaitString in class Dialect
    
    Parameters:
    
    aliases - The columns to be write locked.
    
    Returns:
    
    The appropriate FOR UPDATE OF colunm_list NOWAIT clause string.
  - getForUpdateSkipLockedString
```
public String getForUpdateSkipLockedString()
```
    Description copied from class: Dialect
    
    Retrieves the FOR UPDATE SKIP LOCKED syntax specific to this dialect.
    
    Overrides:
    
    getForUpdateSkipLockedString in class Dialect
    
    Returns:
    
    The appropriate FOR UPDATE SKIP LOCKED clause string.
  - getForUpdateSkipLockedString
```
public String getForUpdateSkipLockedString(String aliases)
```
    Description copied from class: Dialect
    
    Get the FOR UPDATE OF column_list SKIP LOCKED fragment appropriate for this dialect, given the aliases of the columns to be write locked.
    
    Overrides:
    
    getForUpdateSkipLockedString in class Dialect
    
    Parameters:
    
    aliases - The columns to be write locked.
    
    Returns:
    
    The appropriate FOR UPDATE colunm_list SKIP LOCKED clause string.
  - supportsOuterJoinForUpdate
```
public boolean supportsOuterJoinForUpdate()
```
    Description copied from class: Dialect
    
    Does this dialect support FOR UPDATE in conjunction with outer-joined rows?
    
    Overrides:
    
    supportsOuterJoinForUpdate in class Dialect
    
    Returns:
    
    True if outer-joined rows can be locked via FOR UPDATE.
  - useInputStreamToInsertBlob
```
public boolean useInputStreamToInsertBlob()
```
    Description copied from class: Dialect
    
    Should LOBs (both BLOB and CLOB) be bound using stream operations, that is, using PreparedStatement.setBinaryStream(int, java.io.InputStream, int)).
    
    Overrides:
    
    useInputStreamToInsertBlob in class Dialect
    
    Returns:
    
    True if BLOBs and CLOBs should be bound using stream operations.
  - useConnectionToCreateLob
```
public boolean useConnectionToCreateLob()
```
    Description copied from class: Dialect
    
    Should BLOB, CLOB, and NCLOB be created solely using respectively Connection.createBlob(), Connection.createClob(), and Connection.createNClob().
    
    Overrides:
    
    useConnectionToCreateLob in class Dialect
    
    Returns:
    
    True if BLOB, CLOB, and NCLOB should be created using JDBC Connection.
  - supportsOffsetInSubquery
```
public boolean supportsOffsetInSubquery()
```
    Description copied from class: Dialect
    Does this dialect support offset in subqueries?
    For example:
    select * from Table1 where col1 in (select col1 from Table2 order by col2 limit 1 offset 1)
    Overrides:
    
    supportsOffsetInSubquery in class Dialect
    
    Returns:
    
    true if it does
  - supportsWindowFunctions
```
public boolean supportsWindowFunctions()
```
    Description copied from class: Dialect
    
    Does this dialect support window functions like row_number() over (..)?
    
    Overrides:
    
    supportsWindowFunctions in class Dialect
    
    Returns:
    
    true if the underlying database supports window functions, false otherwise. The default is false.
  - supportsLateral
```
public boolean supportsLateral()
```
    Description copied from class: Dialect
    
    Does this dialect support the SQL lateral keyword or a proprietary alternative?
    
    Overrides:
    
    supportsLateral in class Dialect
    
    Returns:
    
    true if the underlying database supports lateral, false otherwise. The default is false.
  - supportsNoWait
```
public boolean supportsNoWait()
```
    Description copied from class: Dialect
    
    Does this dialect support NO_WAIT timeout.
    
    Overrides:
    
    supportsNoWait in class Dialect
    
    Returns:
    
    true if NO_WAIT is supported
  - supportsWait
```
public boolean supportsWait()
```
    Description copied from class: Dialect
    
    Does this dialect support WAIT timeout.
    
    Overrides:
    
    supportsWait in class Dialect
    
    Returns:
    
    true if WAIT is supported
  - supportsSkipLocked
```
public boolean supportsSkipLocked()
```
    Description copied from class: Dialect
    
    Does this dialect support SKIP_LOCKED timeout.
    
    Overrides:
    
    supportsSkipLocked in class Dialect
    
    Returns:
    
    true if SKIP_LOCKED is supported
  - getFunctionalDependencyAnalysisSupport
```
public FunctionalDependencyAnalysisSupport getFunctionalDependencyAnalysisSupport()
```
    Description copied from class: Dialect
    
    Get this dialect's level of support for primary key functional dependency analysis within GROUP BY and ORDER BY clauses.
    
    Overrides:
    
    getFunctionalDependencyAnalysisSupport in class Dialect
  - getWriteRowLockStrategy
```
public RowLockStrategy getWriteRowLockStrategy()
```
    Description copied from class: Dialect
    
    The row lock strategy to use for write locks.
    
    Overrides:
    
    getWriteRowLockStrategy in class Dialect
  - getNameQualifierSupport
```
public NameQualifierSupport getNameQualifierSupport()
```
    Description copied from class: Dialect
    
    The support for qualified identifiers.
    By default, decide based on DatabaseMetaData.
    
    Overrides:
    
    getNameQualifierSupport in class Dialect
    
    Returns:
    
    The NameQualifierSupport, or null to use DatabaseMetaData.
  - buildIdentifierHelper
```
public IdentifierHelper buildIdentifierHelper(IdentifierHelperBuilder builder,
                                              DatabaseMetaData dbMetaData)
                                       throws SQLException
```
    Description copied from class: Dialect
    The IdentifierHelper indicated by this dialect for handling identifier conversions. Returning null is allowed and indicates that Hibernate should fall back to building a "standard" helper. In the fallback path, any changes made to the IdentifierHelperBuilder during this call will still be incorporated into the built IdentifierHelper.
    The incoming builder will have the following set:
    
    IdentifierHelperBuilder.isGloballyQuoteIdentifiers()
    
    IdentifierHelperBuilder.getUnquotedCaseStrategy() - initialized to UPPER
    
    IdentifierHelperBuilder.getQuotedCaseStrategy() - initialized to MIXED
    
    By default, Hibernate will do the following:
    
    Call IdentifierHelperBuilder.applyIdentifierCasing(DatabaseMetaData)
    Call IdentifierHelperBuilder.applyReservedWords(DatabaseMetaData)
    Applies AnsiSqlKeywords.sql2003() as reserved words
    
    Applies the {#link #sqlKeywords} collected here as reserved words
    
    Applies the Dialect's NameQualifierSupport, if it defines one
    Overrides:
    
    buildIdentifierHelper in class Dialect
    
    Parameters:
    
    builder - A partially-configured IdentifierHelperBuilder.
    
    dbMetaData - Access to the metadata returned from the driver if needed and if available. WARNING: it may be null.
    
    Returns:
    
    The IdentifierHelper instance to use, or null to indicate Hibernate should use its fallback path
    
    Throws:
    
    SQLException - Accessing the DatabaseMetaData can throw it. Just rethrow and Hibernate will handle it.
    
    See Also:
    
    Dialect.getNameQualifierSupport()
  - getViolatedConstraintNameExtractor
```
public ViolatedConstraintNameExtractor getViolatedConstraintNameExtractor()
```
    Description copied from class: Dialect
    
    A ViolatedConstraintNameExtractor for extracting the name of a violated constraint from a SQLException.
    
    Specified by:
    
    getViolatedConstraintNameExtractor in interface ConversionContext
    
    Overrides:
    
    getViolatedConstraintNameExtractor in class Dialect
  - buildSQLExceptionConversionDelegate
```
public SQLExceptionConversionDelegate buildSQLExceptionConversionDelegate()
```
    Description copied from class: Dialect
    An instance of SQLExceptionConversionDelegate for interpreting dialect-specific error or SQLState codes.
    If this method is overridden to return a non-null value, the default SQLExceptionConverter will use the returned SQLExceptionConversionDelegate in addition to the following standard delegates:
    
    a "static" delegate based on the JDBC4-defined SQLException hierarchy, and
    a delegate that interprets SQLState codes as either X/Open or SQL-2003 codes, depending on what is reported by the JDBC driver.
    
    It is strongly recommended that every Dialect implementation override this method, since interpretation of a SQL error is much more accurate when based on the vendor-specific error code, rather than on the SQLState.
    Overrides:
    
    buildSQLExceptionConversionDelegate in class Dialect
    
    Returns:
    
    The SQLExceptionConversionDelegate for this dialect
  - getQueryHintString
```
public String getQueryHintString(String query,
                                 List<String> hintList)
```
    Applies the hints to the query string. The hints can be index selection hints or join hints.
    For index selection hints, use the format <tablename>@{FORCE_INDEX=<index>[,<DIRECTION>]} where the optional DIRECTION is either ASC (ascending) or DESC (descending). Multiple index hints can be provided. The effect is that in the final SQL statement the hint is added to the table name mentioned in the hint.
    For join hints, use the format "<MERGE|HASH|LOOKUP|INVERTED> JOIN". Only one join hint will be added. It is applied to all join statements in the SQL statement.
    Hints are only added to select statements.
    
    Overrides:
    
    getQueryHintString in class Dialect
    
    Parameters:
    
    query - The query to which to apply the hint.
    
    hintList - The hints to apply
    
    Returns:
    
    the query with hints added
  - getDefaultIntervalSecondScale
```
public int getDefaultIntervalSecondScale()
```
    Description copied from class: Dialect
    
    This is the default scale for a generated column of type INTERVAL SECOND mapped to a Duration.
    Usually 9 (nanoseconds) or 6 (microseconds).
    
    Overrides:
    
    getDefaultIntervalSecondScale in class Dialect
    
    Returns:
    
    the default scale, in decimal digits, of the fractional seconds field
    
    See Also:
    
    DurationJavaType
  - getDmlTargetColumnQualifierSupport
```
public DmlTargetColumnQualifierSupport getDmlTargetColumnQualifierSupport()
```
    Description copied from class: Dialect
    
    Get the minimum DmlTargetColumnQualifierSupport required by this dialect.
    
    Overrides:
    
    getDmlTargetColumnQualifierSupport in class Dialect
    
    Returns:
    
    the column qualifier support required by this dialect
  - supportsFromClauseInUpdate
```
public boolean supportsFromClauseInUpdate()
```
    Description copied from class: Dialect
    
    Does this dialect support the from clause for update statements?
    
    Overrides:
    
    supportsFromClauseInUpdate in class Dialect
    
    Returns:
    
    true if from clause is supported

Modifier and Type	Field	Description
`protected PostgreSQLDriverKind`	`driverKind`
`protected static DatabaseVersion`	`MINIMUM_VERSION`

Class CockroachDialect

Nested Class Summary

Nested classes/interfaces inherited from class org.hibernate.dialect.Dialect

Field Summary

Fields inherited from class org.hibernate.dialect.Dialect

Constructor Summary

Method Summary

Methods inherited from class org.hibernate.dialect.Dialect

Methods inherited from class java.lang.Object

Field Detail

MINIMUM_VERSION

driverKind

Constructor Detail

CockroachDialect

CockroachDialect

CockroachDialect

CockroachDialect

CockroachDialect

Method Detail

fetchDataBaseVersion

parseVersion

getMinimumSupportedVersion

columnType

castType

registerColumnTypes

resolveSqlTypeDescriptor

resolveSqlTypeCode

contributeTypes

contributeCockroachTypes

initializeFunctionRegistry

getTimeZoneSupport

appendBooleanValueString

getCascadeConstraintsString

supportsCurrentTimestampSelection

isCurrentTimestampSelectStringCallable

getCurrentTimestampSelectString

supportsDistinctFromPredicate

supportsIfExistsBeforeTableName

supportsIfExistsBeforeConstraintName

supportsIfExistsAfterAlterTable

qualifyIndexName

getIdentityColumnSupport

supportsValuesList

supportsPartitionBy

supportsNonQueryWithCTE

supportsRecursiveCTE

supportsConflictClauseForInsertCTE

getNoColumnsInsertString

getCaseInsensitiveLike

supportsCaseInsensitiveLike

supportsNullPrecedence

getNullOrdering

supportsTupleCounts

requiresParensForTupleDistinctCounts

getNativeIdentifierGeneratorStrategy

getSequenceSupport

getQuerySequencesString

supportsLobValueChangePropagation

getSqlAstTranslatorFactory

getNationalizationSupport

getMaxIdentifierLength

supportsStandardArrays

supportsTemporalLiteralOffset

appendDateTimeLiteral

appendDateTimeLiteral

appendDateTimeLiteral

extractPattern

translateExtractField

getFractionalSecondPrecisionInNanos

timestampaddPattern

timestampdiffPattern

translateDurationField

appendDatetimeFormat

getLimitHandler

getForUpdateString

getForUpdateString

getForUpdateString

getWriteLockString

getWriteLockString

getReadLockString