Examples with Symbols io.crate.expression.symbol.Symbols used on opensource projects

Example 11 with Symbols

use of io.crate.expression.symbol.Symbols in project crate by crate.

the class CreateTableAsAnalyzer method analyze.

public AnalyzedCreateTableAs analyze(CreateTableAs createTableAs, ParamTypeHints paramTypeHints, CoordinatorTxnCtx txnCtx) {
    RelationName relationName = RelationName.of(createTableAs.name().getName(), txnCtx.sessionContext().searchPath().currentSchema());
    relationName.ensureValidForRelationCreation();
    AnalyzedRelation analyzedSourceQuery = relationAnalyzer.analyze(createTableAs.query(), new StatementAnalysisContext(paramTypeHints, Operation.READ, txnCtx));
    List<TableElement<Expression>> tableElements = Lists2.map(analyzedSourceQuery.outputs(), Symbols::toColumnDefinition);
    CreateTable<Expression> createTable = new CreateTable<Expression>(createTableAs.name(), tableElements, Optional.empty(), Optional.empty(), GenericProperties.empty(), false);
    // This is only a preliminary analysis to to have the source available for privilege checks.
    // It will be analyzed again with the target columns from the target table once
    // the table has been created.
    AnalyzedRelation sourceRelation = relationAnalyzer.analyze(createTableAs.query(), new StatementAnalysisContext(paramTypeHints, Operation.READ, txnCtx));
    // postponing the analysis of the insert statement, since the table has not been created yet.
    Supplier<AnalyzedInsertStatement> postponedInsertAnalysis = () -> {
        Insert<Expression> insert = new Insert<Expression>(createTableAs.name(), createTableAs.query(), Collections.emptyList(), Collections.emptyList(), Insert.DuplicateKeyContext.none());
        return insertAnalyzer.analyze(insert, paramTypeHints, txnCtx);
    };
    return new AnalyzedCreateTableAs(createTableStatementAnalyzer.analyze(createTable, paramTypeHints, txnCtx), sourceRelation, postponedInsertAnalysis);
}