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#pragma once
#include "lexer.h"
#include <yql/essentials/public/issue/yql_issue.h>
#include <util/generic/string.h>
#include <util/generic/vector.h>
#include <util/generic/map.h>
#include <util/stream/output.h>
namespace NSQLTranslation {
struct TSQLHint {
// SQL Hints are placed inside comments and have following format:
// /*+ Name('Val''ue1' Value2 Value3) ... Name2(Value1 Value2 Value3) */
// or the same with single line comments:
// --+ Name(Value1 Value2 Value3) ... Name2(Value1 Value2 Value3)
TString Name;
TVector<TString> Values;
NYql::TPosition Pos;
TString ToString() const;
void Out(IOutputStream& o) const;
};
using TSQLHints = TMap<NYql::TPosition, TVector<TSQLHint>>;
// SQL hints are collected by lexer and bound to the position of nearest non-comment token to the left
// For example: SELECT /*+ Name(Value) */ -- Name2(Value2)
// in this case TSQLHints will consist of single entry with position of SELECT token
bool CollectSqlHints(ILexer& lexer, const TString& query, const TString& queryName,
const TString& queryFile, TSQLHints& hints, NYql::TIssues& issues, size_t maxErrors, bool utf8Aware);
}
Y_DECLARE_OUT_SPEC(inline, NSQLTranslation::TSQLHint, stream, value) {
value.Out(stream);
}
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