Package org.apache.calcite.sql.dialect

Class DorisSqlDialect

java.lang.Object

org.apache.calcite.sql.SqlDialect

org.apache.calcite.sql.dialect.MysqlSqlDialect

org.apache.calcite.sql.dialect.StarRocksSqlDialect

org.apache.calcite.sql.dialect.DorisSqlDialect

public class DorisSqlDialect
extends StarRocksSqlDialect

A SqlDialect implementation for the Doris database.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.sql.SqlDialect

SqlDialect.CalendarPolicy, SqlDialect.Context, SqlDialect.DatabaseProduct, SqlDialect.FakeUtil

Field Summary

Fields

Modifier and Type	Field	Description
static final SqlDialect	DEFAULT

Fields inherited from class org.apache.calcite.sql.dialect.StarRocksSqlDialect

DEFAULT_CONTEXT, STARROCKS_TYPE_SYSTEM

Fields inherited from class org.apache.calcite.sql.dialect.MysqlSqlDialect

ISNULL_FUNCTION, MYSQL_TYPE_SYSTEM

Fields inherited from class org.apache.calcite.sql.SqlDialect

BUILT_IN_OPERATORS_LIST, EMPTY_CONTEXT, identifierEndQuoteString, identifierEscapedQuote, identifierQuoteString, literalEndQuoteString, literalEscapedQuote, literalQuoteString, LOGGER, nullCollation

Constructor Summary

Constructors

Constructor	Description
DorisSqlDialect(SqlDialect.Context context)	Creates a DorisSqlDialect.

Method Summary

Modifier and Type	Method	Description
@Nullable SqlNode	getCastSpec(RelDataType type)	Returns SqlNode for type in "cast(column as type)", which might be different between databases by type name, precision etc.
void	unparseCall(SqlWriter writer, SqlCall call, int leftPrec, int rightPrec)

Methods inherited from class org.apache.calcite.sql.dialect.StarRocksSqlDialect

prepareUnparse, supportsApproxCountDistinct, supportsGroupByWithRollup, supportsJoinType, supportsTimestampPrecision, unparseDateTimeLiteral

Methods inherited from class org.apache.calcite.sql.dialect.MysqlSqlDialect

emulateNullDirection, getCalendarPolicy, requiresAliasForFromItems, rewriteSingleValueExpr, supportsAggregateFunction, supportsAggregateFunctionFilter, supportsAliasedValues, supportsCharSet, supportsNestedAggregations, unparseOffsetFetch, unparseSqlIntervalQualifier

Methods inherited from class org.apache.calcite.sql.SqlDialect

allowsAs, configureParser, configureParser, containsNonAscii, create, defaultNullDirection, emulateJoinTypeForCrossJoin, emulateNullDirectionWithIsNull, getConformance, getDatabaseProduct, getFormatModel, getNullCollation, getProduct, getQuotedCasing, getQuoting, getSingleRowTableName, getTypeSystem, getUnquotedCasing, hasImplicitTableAlias, identifierNeedsQuote, isCaseSensitive, quoteIdentifier, quoteIdentifier, quoteIdentifier, quoteStringLiteral, quoteStringLiteral, quoteStringLiteralUnicode, quoteTimestampLiteral, rewriteMaxMin, rewriteMaxMinExpr, supportBooleanCaseWhen, supportGenerateSelectStar, supportsDataType, supportsFunction, supportsGroupByLiteral, supportsGroupByWithCube, supportsImplicitTypeCoercion, supportsOffsetFetch, supportsOrderByLiteral, supportsWindowFunctions, unparseBoolLiteral, unparseFetchUsingAnsi, unparseFetchUsingLimit, unparseLimit, unparseNumericLiteral, unparseOffset, unparseSqlDatetimeArithmetic, unparseSqlIntervalLiteral, unparseSqlSetOption, unparseTableScanHints, unparseTopN, unquoteStringLiteral

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

DEFAULT

public static final SqlDialect DEFAULT

Constructor Details

DorisSqlDialect

public DorisSqlDialect(SqlDialect.Context context)

Creates a DorisSqlDialect.

Method Details

unparseCall

public void unparseCall(SqlWriter writer,
 SqlCall call,
 int leftPrec,
 int rightPrec)

Overrides:

unparseCall in class StarRocksSqlDialect

getCastSpec

public @Nullable SqlNode getCastSpec(RelDataType type)

Description copied from class: SqlDialect

Returns SqlNode for type in "cast(column as type)", which might be different between databases by type name, precision etc.

If this method returns null, the cast will be omitted. In the default implementation, this is the case for the NULL type, and therefore CAST(NULL AS <nulltype>) is rendered as NULL.

Overrides:

getCastSpec in class StarRocksSqlDialect