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SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

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Overview
Comment:Provide grave accent quoting of identifiers for MySQL compatibility. Ticket #1337. (CVS 2591)
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 6b7a4e97528a4e179e0bbae69469cb1a3d1f794b
User & Date: drh 2005-08-13 18:15:43
Context
2005-08-14
01:20
The case_sensitive_like pragma added. Test cases added for the LIKE optimization. (CVS 2592) check-in: 72ee21c0 user: drh tags: trunk
2005-08-13
18:15
Provide grave accent quoting of identifiers for MySQL compatibility. Ticket #1337. (CVS 2591) check-in: 6b7a4e97 user: drh tags: trunk
17:17
Give the same access permissions to journal files as is given to databases. (CVS 2590) check-in: 7961ec0c user: drh tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/tokenize.c.

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*************************************************************************
** An tokenizer for SQL
**
** This file contains C code that splits an SQL input string up into
** individual tokens and sends those tokens one-by-one over to the
** parser for analysis.
**
** $Id: tokenize.c,v 1.104 2005/06/22 08:48:06 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>
#include <stdlib.h>

/*
................................................................................
      *tokenType = TK_BITAND;
      return 1;
    }
    case '~': {
      *tokenType = TK_BITNOT;
      return 1;
    }


    case '\'': case '"': {
      int delim = z[0];
      for(i=1; (c=z[i])!=0; i++){
        if( c==delim ){
          if( z[i+1]==delim ){
            i++;
          }else{
            break;
................................................................................
      case '[': {   /* Microsoft-style identifiers in [...] */
        zSql++;
        while( *zSql && *zSql!=']' ){ zSql++; }
        if( *zSql==0 ) return 0;
        token = tkOTHER;
        break;
      }

      case '"':     /* single- and double-quoted strings */
      case '\'': {
        int c = *zSql;
        zSql++;
        while( *zSql && *zSql!=c ){ zSql++; }
        if( *zSql==0 ) return 0;
        token = tkOTHER;







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*************************************************************************
** An tokenizer for SQL
**
** This file contains C code that splits an SQL input string up into
** individual tokens and sends those tokens one-by-one over to the
** parser for analysis.
**
** $Id: tokenize.c,v 1.105 2005/08/13 18:15:43 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>
#include <stdlib.h>

/*
................................................................................
      *tokenType = TK_BITAND;
      return 1;
    }
    case '~': {
      *tokenType = TK_BITNOT;
      return 1;
    }
    case '`':
    case '\'':
    case '"': {
      int delim = z[0];
      for(i=1; (c=z[i])!=0; i++){
        if( c==delim ){
          if( z[i+1]==delim ){
            i++;
          }else{
            break;
................................................................................
      case '[': {   /* Microsoft-style identifiers in [...] */
        zSql++;
        while( *zSql && *zSql!=']' ){ zSql++; }
        if( *zSql==0 ) return 0;
        token = tkOTHER;
        break;
      }
      case '`':     /* Grave-accent quoted symbols used by MySQL */
      case '"':     /* single- and double-quoted strings */
      case '\'': {
        int c = *zSql;
        zSql++;
        while( *zSql && *zSql!=c ){ zSql++; }
        if( *zSql==0 ) return 0;
        token = tkOTHER;

Changes to src/util.c.

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**
*************************************************************************
** Utility functions used throughout sqlite.
**
** This file contains functions for allocating memory, comparing
** strings, and stuff like that.
**
** $Id: util.c,v 1.141 2005/07/20 14:31:53 drh Exp $
*/
#include "sqliteInt.h"
#include <stdarg.h>
#include <ctype.h>

#if SQLITE_MEMDEBUG>2 && defined(__GLIBC__)
#include <execinfo.h>
................................................................................
  int quote;
  int i, j;
  if( z==0 ) return;
  quote = z[0];
  switch( quote ){
    case '\'':  break;
    case '"':   break;

    case '[':   quote = ']';  break;
    default:    return;
  }
  for(i=1, j=0; z[i]; i++){
    if( z[i]==quote ){
      if( z[i+1]==quote ){
        z[j++] = quote;
        i++;







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**
*************************************************************************
** Utility functions used throughout sqlite.
**
** This file contains functions for allocating memory, comparing
** strings, and stuff like that.
**
** $Id: util.c,v 1.142 2005/08/13 18:15:43 drh Exp $
*/
#include "sqliteInt.h"
#include <stdarg.h>
#include <ctype.h>

#if SQLITE_MEMDEBUG>2 && defined(__GLIBC__)
#include <execinfo.h>
................................................................................
  int quote;
  int i, j;
  if( z==0 ) return;
  quote = z[0];
  switch( quote ){
    case '\'':  break;
    case '"':   break;
    case '`':   break;                /* For MySQL compatibility */
    case '[':   quote = ']';  break;  /* For MS SqlServer compatibility */
    default:    return;
  }
  for(i=1, j=0; z[i]; i++){
    if( z[i]==quote ){
      if( z[i+1]==quote ){
        z[j++] = quote;
        i++;

Changes to test/quote.test.

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#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is the ability to specify table and column names
# as quoted strings.
#
# $Id: quote.test,v 1.4 2004/08/20 18:34:20 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Create a table with a strange name and with strange column names.
#
do_test quote-1.0 {
  set r [catch {
    execsql {CREATE TABLE '@abc' ( '#xyz' int, '!pqr' text );}
  } msg]
  lappend r $msg
} {0 {}}

# Insert, update and query the table.
#
do_test quote-1.1 {
  set r [catch {
    execsql {INSERT INTO '@abc' VALUES(5,'hello')}
  } msg]
  lappend r $msg
} {0 {}}
do_test quote-1.2 {
  set r [catch {
    execsql {SELECT * FROM '@abc'}
  } msg ]
  lappend r $msg
} {0 {5 hello}}
do_test quote-1.3 {
  set r [catch {
    execsql {SELECT '@abc'.'!pqr', '@abc'.'#xyz'+5 FROM '@abc'}
  } msg ]
  lappend r $msg
} {0 {hello 10}}
do_test quote-1.3.1 {
  catchsql {
    SELECT '!pqr', '#xyz'+5 FROM '@abc'
  }
} {0 {!pqr 5.0}}
do_test quote-1.3.2 {
  catchsql {
    SELECT "!pqr", "#xyz"+5 FROM '@abc'
  }





} {0 {hello 10}}
do_test quote-1.3 {
  set r [catch {
    execsql {SELECT '@abc'.'!pqr', '@abc'.'#xyz'+5 FROM '@abc'}
  } msg ]
  lappend r $msg
} {0 {hello 10}}







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#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is the ability to specify table and column names
# as quoted strings.
#
# $Id: quote.test,v 1.5 2005/08/13 18:15:43 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Create a table with a strange name and with strange column names.
#
do_test quote-1.0 {

  catchsql {CREATE TABLE '@abc' ( '#xyz' int, '!pqr' text );}


} {0 {}}

# Insert, update and query the table.
#
do_test quote-1.1 {
  catchsql {INSERT INTO '@abc' VALUES(5,'hello')}
} {0 {}}
do_test quote-1.2.1 {
  catchsql {SELECT * FROM '@abc'}
} {0 {5 hello}}
do_test quote-1.2.2 {
  catchsql {SELECT * FROM [@abc]}  ;# SqlServer compatibility
} {0 {5 hello}}
do_test quote-1.2.3 {
  catchsql {SELECT * FROM `@abc`}  ;# MySQL compatibility
} {0 {5 hello}}
do_test quote-1.3 {
  catchsql {
    SELECT '@abc'.'!pqr', '@abc'.'#xyz'+5 FROM '@abc'
  }

} {0 {hello 10}}
do_test quote-1.3.1 {
  catchsql {
    SELECT '!pqr', '#xyz'+5 FROM '@abc'
  }
} {0 {!pqr 5.0}}
do_test quote-1.3.2 {
  catchsql {
    SELECT "!pqr", "#xyz"+5 FROM '@abc'
  }
} {0 {hello 10}}
do_test quote-1.3.3 {
  catchsql {
    SELECT [!pqr], `#xyz`+5 FROM '@abc'
  }
} {0 {hello 10}}
do_test quote-1.3 {
  set r [catch {
    execsql {SELECT '@abc'.'!pqr', '@abc'.'#xyz'+5 FROM '@abc'}
  } msg ]
  lappend r $msg
} {0 {hello 10}}