@Override
public PostgresStatement finishGenerating(
PostgresServerSession server,
String sql,
StatementNode stmt,
List<ParameterNode> params,
int[] paramTypes) {
ExplainPlanContext context = new ExplainPlanContext(compiler, new PostgresQueryContext(server));
ExplainStatementNode explainStmt = (ExplainStatementNode) stmt;
StatementNode innerStmt = explainStmt.getStatement();
if (params == null) params = new ParameterFinder().find(innerStmt);
Explainable explainable;
if (innerStmt instanceof CallStatementNode) {
explainable =
PostgresCallStatementGenerator.explainable(
server, (CallStatementNode) innerStmt, params, paramTypes);
} else {
BasePlannable result = compiler.compile((DMLStatementNode) innerStmt, params, context);
explainable = result.getPlannable();
}
List<String> explain;
if (compiler instanceof PostgresJsonCompiler) {
JsonFormatter f = new JsonFormatter();
explain =
Collections.singletonList(
f.format(explainable.getExplainer(context.getExplainContext())));
} else {
DefaultFormatter.LevelOfDetail detail;
switch (explainStmt.getDetail()) {
case BRIEF:
detail = DefaultFormatter.LevelOfDetail.BRIEF;
break;
default:
case NORMAL:
detail = DefaultFormatter.LevelOfDetail.NORMAL;
break;
case VERBOSE:
detail = DefaultFormatter.LevelOfDetail.VERBOSE;
break;
}
DefaultFormatter f = new DefaultFormatter(server.getDefaultSchemaName(), detail);
explain = f.format(explainable.getExplainer(context.getExplainContext()));
}
init(explain);
compiler = null;
return this;
}
