Explain¶

Explain is a Statement.

Creating Instance¶

Explain takes the following to be created:

• Node Location (in a SQL text)
• Query ID
• Statement

Explain is created when:

• AstBuilder.Visitor is requested to parse EXPLAIN statement
• StatementRewriter.Rewriter is requested to visitExplain

accept¶

R accept(
  AstVisitor<R, C> visitor,
  C context)

accept requests the given AstVisitor to visitExplain.

accept is part of the Statement abstraction.