Collaboration diagram for com.cloudera.impala.analysis.ToSqlUtils:

Static Public Member Functions
static String	getIdentSql (String ident)

static String	getPathSql (List< String > path)

static String	getCreateTableSql (CreateTableStmt stmt)

static String	getCreateTableSql (Table table) throws CatalogException

static String	getCreateTableSql (String dbName, String tableName, String tableComment, List< String > columnsSql, List< String > partitionColumnsSql, Map< String, String > tblProperties, Map< String, String > serdeParameters, boolean isExternal, boolean ifNotExists, RowFormat rowFormat, HdfsFileFormat fileFormat, HdfsCompression compression, String storageHandlerClass, String location)

static String	getPlanHintsSql (List< String > hints)

Static Private Member Functions
static String	columnToSql (Column col)

static String	propertyMapToSql (Map< String, String > propertyMap)

Static Private Attributes
static final ImmutableSet< String >	HIDDEN_TABLE_PROPERTIES

Detailed Description

Contains utility methods for creating SQL strings, for example, for creating identifier strings that are compatible with Hive or Impala.

Definition at line 46 of file ToSqlUtils.java.

Member Function Documentation

static String com.cloudera.impala.analysis.ToSqlUtils.columnToSql ( Column col )

inlinestaticprivate

Definition at line 243 of file ToSqlUtils.java.

References com.cloudera.impala.catalog.Column.getComment(), com.cloudera.impala.catalog.Column.getName(), and com.cloudera.impala.catalog.Column.getType().

Referenced by com.cloudera.impala.analysis.ToSqlUtils.getCreateTableSql().

static String com.cloudera.impala.analysis.ToSqlUtils.getCreateTableSql ( CreateTableStmt stmt )

inlinestatic

Returns the "CREATE TABLE" SQL string corresponding to the given CreateTableStmt. statement.

Definition at line 109 of file ToSqlUtils.java.

Referenced by com.cloudera.impala.analysis.ToSqlUtils.getCreateTableSql().

static String com.cloudera.impala.analysis.ToSqlUtils.getCreateTableSql ( Table table ) throws CatalogException

inlinestatic

Returns a "CREATE TABLE" statement that creates the specified table.

Definition at line 129 of file ToSqlUtils.java.

References com.cloudera.impala.analysis.ToSqlUtils.columnToSql(), com.cloudera.impala.analysis.ToSqlUtils.getCreateTableSql(), and com.cloudera.impala.analysis.ToSqlUtils.HIDDEN_TABLE_PROPERTIES.

static String com.cloudera.impala.analysis.ToSqlUtils.getCreateTableSql	(	String	dbName,
		String	tableName,
		String	tableComment,
		List< String >	columnsSql,
		List< String >	partitionColumnsSql,
		Map< String, String >	tblProperties,
		Map< String, String >	serdeParameters,
		boolean	isExternal,
		boolean	ifNotExists,
		RowFormat	rowFormat,
		HdfsFileFormat	fileFormat,
		HdfsCompression	compression,
		String	storageHandlerClass,
		String	location
	)

inlinestatic

Returns a "CREATE TABLE" string that creates the table with the specified properties. The tableName must not be null. If columnsSql is null, the schema syntax will not be generated.

Definition at line 166 of file ToSqlUtils.java.

References com.cloudera.impala.catalog.RowFormat.getEscapeChar(), com.cloudera.impala.catalog.RowFormat.getFieldDelimiter(), com.cloudera.impala.catalog.RowFormat.getLineDelimiter(), com.cloudera.impala.catalog.RowFormat.isDefault(), com.cloudera.impala.catalog.HdfsCompression.LZO, com.cloudera.impala.catalog.HdfsCompression.LZO_INDEX, and com.cloudera.impala.analysis.ToSqlUtils.propertyMapToSql().

static String com.cloudera.impala.analysis.ToSqlUtils.getIdentSql ( String ident )

inlinestatic

Given an unquoted identifier string, returns an identifier lexable by Impala and Hive, possibly by enclosing the original identifier in "`" quotes. For example, Hive cannot parse its own auto-generated column names "_c0", "_c1" etc. unless they are quoted. Impala and Hive keywords must also be quoted.

Impala's lexer recognizes a superset of the unquoted identifiers that Hive can. At the same time, Impala's and Hive's list of keywords differ. This method always returns an identifier that Impala and Hive can recognize, although for some identifiers the quotes may not be strictly necessary for one or the other system.

Definition at line 66 of file ToSqlUtils.java.

Referenced by com.cloudera.impala.analysis.ToSqlUtils.getPathSql(), and com.cloudera.impala.analysis.TableName.toSql().

static String com.cloudera.impala.analysis.ToSqlUtils.getPathSql ( List< String > path )

inlinestatic

Definition at line 96 of file ToSqlUtils.java.

References com.cloudera.impala.analysis.ToSqlUtils.getIdentSql().

static String com.cloudera.impala.analysis.ToSqlUtils.getPlanHintsSql ( List< String > hints )

inlinestatic

Returns a SQL representation of the given list of hints. Uses the end-of-line commented plan hint style such that hinted views created by Impala are readable by Hive (parsed as a comment by Hive).

Definition at line 270 of file ToSqlUtils.java.

static String com.cloudera.impala.analysis.ToSqlUtils.propertyMapToSql ( Map< String, String > propertyMap )

inlinestaticprivate

Definition at line 252 of file ToSqlUtils.java.

Referenced by com.cloudera.impala.analysis.ToSqlUtils.getCreateTableSql().

Member Data Documentation

final ImmutableSet<String> com.cloudera.impala.analysis.ToSqlUtils.HIDDEN_TABLE_PROPERTIES

staticprivate

Initial value:

=

ImmutableSet.of("EXTERNAL", "comment")

Definition at line 50 of file ToSqlUtils.java.

Referenced by com.cloudera.impala.analysis.ToSqlUtils.getCreateTableSql().

The documentation for this class was generated from the following file:

fe/src/main/java/com/cloudera/impala/analysis/ToSqlUtils.java

Static Public Member Functions

Static Private Member Functions

Static Private Attributes

Detailed Description

Member Function Documentation

Member Data Documentation