mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-04-24 18:27:02 +03:00
d2e7c9d98d
MCOL-2000 Process charset definitions in the ALTER TABLE .. ADD COLUMN MCOL-2000 Yet another fixes for column charsets * make respect for column (including table/db/server default) charsets for the TEXT(n) fields * round TEXT(n) column length up to the next default length of TEXT-like subtypes, 255 (TINYTEXT), 65535 (TEXT) and so on up to 2100000000 (LONGTEXT)
149 lines
3.2 KiB
C++
149 lines
3.2 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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Copyright (C) 2016 MariaDB Corporation
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/***********************************************************************
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* $Id: sqlparser.cpp 9210 2013-01-21 14:10:42Z rdempsey $
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*
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*
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***********************************************************************/
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#include <fstream>
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#include <errno.h>
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#define DDLPKGSQLPARSER_DLLEXPORT
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#include "sqlparser.h"
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#undef DDLPKGSQLPARSER_DLLEXPORT
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#ifdef _MSC_VER
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#include "ddl-gram-win.h"
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#else
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#include "ddl-gram.h"
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#endif
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void scanner_finish(void* yyscanner);
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void scanner_init(const char* str, void* yyscanner);
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int ddllex_init_extra(void* user_defined, void** yyscanner);
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int ddllex_destroy(void* yyscanner);
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int ddlparse(ddlpackage::pass_to_bison* x);
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void set_schema(std::string schema);
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namespace ddlpackage
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{
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using namespace std;
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SqlParser::SqlParser() :
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fStatus(-1),
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fDebug(false),
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x(&fParseTree)
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{
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}
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void SqlParser::SetDebug(bool debug)
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{
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fDebug = debug;
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}
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void SqlParser::setDefaultSchema(std::string schema)
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{
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x.fDBSchema = schema;
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}
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void SqlParser::setDefaultCharset(const CHARSET_INFO* default_charset)
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{
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x.default_table_charset = default_charset;
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}
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int SqlParser::Parse(const char* sqltext)
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{
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ddllex_init_extra(&scanData, &x.scanner);
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scanner_init(sqltext, x.scanner);
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fStatus = ddlparse(&x);
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return fStatus;
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}
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const ParseTree& SqlParser::GetParseTree(void)
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{
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if (!Good())
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{
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throw logic_error("The ParseTree is invalid");
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}
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return fParseTree;
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}
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bool SqlParser::Good()
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{
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return fStatus == 0;
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}
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SqlParser::~SqlParser()
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{
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scanner_finish(x.scanner); // free scanner allocated memory
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ddllex_destroy(x.scanner);
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}
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SqlFileParser::SqlFileParser() :
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SqlParser()
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{
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}
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int SqlFileParser::Parse(const string& sqlfile)
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{
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fStatus = -1;
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ifstream ifsql;
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ifsql.open(sqlfile.c_str());
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if (!ifsql.is_open())
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{
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perror(sqlfile.c_str());
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return fStatus;
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}
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char sqlbuf[1024 * 1024];
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unsigned length;
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ifsql.seekg (0, ios::end);
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length = ifsql.tellg();
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ifsql.seekg (0, ios::beg);
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if (length > sizeof(sqlbuf) - 1)
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{
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throw length_error("SqlFileParser has file size hard limit of 16K.");
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}
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std::streamsize rcount;
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rcount = ifsql.readsome(sqlbuf, sizeof(sqlbuf) - 1);
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if (rcount < 0)
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return fStatus;
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sqlbuf[rcount] = 0;
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//cout << endl << sqlfile << "(" << rcount << ")" << endl;
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//cout << "----------------------" << endl;
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//cout << sqlbuf << endl;
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return SqlParser::Parse(sqlbuf);
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}
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}
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