Function ExecutionCtx_Clone

src/commands/execution_ctx.c:74–90

clone the execution ctx and return a shallow copy for the ast deep copy for the execution plan

// clone the execution ctx and return a shallow copy for the ast
// deep copy for the execution plan
ExecutionCtx *ExecutionCtx_Clone
(
	const ExecutionCtx *ctx  // execution context to clone
) {
	ExecutionCtx *clone = rm_malloc(sizeof(ExecutionCtx));

	clone->ast = AST_ShallowCopy(ctx->ast);

	// set the AST copy in thread local storage
	QueryCtx_SetAST(clone->ast);

	clone->plan      = ExecutionPlan_Clone(ctx->plan);
	clone->cached    = ctx->cached;
	clone->exec_type = ctx->exec_type;

	return clone;
}

// returns the objects and information required for query execution
// if the query contains error, a ExecutionCtx struct with the AST