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Overview
Comment:Allow DROP TABLE to work on tables name "sqlite_parameters" just as it does with tables named "sqlite_stat%". Fix for the ".parameter clear" command in the shell.
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SHA3-256: e768179baacb2423205a774cc8149fe58ed86a9320102aff4844b1d8933aa1db
User & Date: drh 2019-09-26 20:05:16
Context
2019-09-26
20:57
More minor test file fixes. check-in: 352878fe1c user: dan tags: trunk
20:05
Allow DROP TABLE to work on tables name "sqlite_parameters" just as it does with tables named "sqlite_stat%". Fix for the ".parameter clear" command in the shell. check-in: e768179baa user: drh tags: trunk
19:53
Minor fix for test file indexexpr1.test. check-in: 0ceab26f15 user: dan tags: trunk
Changes
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Changes to src/build.c.

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    }
    if( sqlite3AuthCheck(pParse, SQLITE_DELETE, pTab->zName, 0, zDb) ){
      goto exit_drop_table;
    }
  }
#endif
  if( sqlite3StrNICmp(pTab->zName, "sqlite_", 7)==0 
    && sqlite3StrNICmp(pTab->zName, "sqlite_stat", 11)!=0 ){

    sqlite3ErrorMsg(pParse, "table %s may not be dropped", pTab->zName);
    goto exit_drop_table;
  }

#ifndef SQLITE_OMIT_VIEW
  /* Ensure DROP TABLE is not used on a view, and DROP VIEW is not used
  ** on a table.







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    }
    if( sqlite3AuthCheck(pParse, SQLITE_DELETE, pTab->zName, 0, zDb) ){
      goto exit_drop_table;
    }
  }
#endif
  if( sqlite3StrNICmp(pTab->zName, "sqlite_", 7)==0 
    && sqlite3StrNICmp(pTab->zName+7, "stat", 4)!=0
    && sqlite3StrNICmp(pTab->zName+7, "parameters", 10)!=0 ){
    sqlite3ErrorMsg(pParse, "table %s may not be dropped", pTab->zName);
    goto exit_drop_table;
  }

#ifndef SQLITE_OMIT_VIEW
  /* Ensure DROP TABLE is not used on a view, and DROP VIEW is not used
  ** on a table.

Changes to src/shell.c.in.

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    open_db(p,0);
    if( nArg<=1 ) goto parameter_syntax_error;

    /* .parameter clear
    ** Clear all bind parameters by dropping the TEMP table that holds them.
    */
    if( nArg==2 && strcmp(azArg[1],"clear")==0 ){
      int wrSchema = 0;
      sqlite3_db_config(p->db, SQLITE_DBCONFIG_WRITABLE_SCHEMA, -1, &wrSchema);
      sqlite3_db_config(p->db, SQLITE_DBCONFIG_WRITABLE_SCHEMA, 1, 0);
      sqlite3_exec(p->db, "DROP TABLE IF EXISTS temp.sqlite_parameters;",
                   0, 0, 0);
      sqlite3_db_config(p->db, SQLITE_DBCONFIG_WRITABLE_SCHEMA, wrSchema, 0);
    }else

    /* .parameter list
    ** List all bind parameters.
    */
    if( nArg==2 && strcmp(azArg[1],"list")==0 ){
      sqlite3_stmt *pStmt = 0;







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    open_db(p,0);
    if( nArg<=1 ) goto parameter_syntax_error;

    /* .parameter clear
    ** Clear all bind parameters by dropping the TEMP table that holds them.
    */
    if( nArg==2 && strcmp(azArg[1],"clear")==0 ){



      sqlite3_exec(p->db, "DROP TABLE IF EXISTS temp.sqlite_parameters;",
                   0, 0, 0);

    }else

    /* .parameter list
    ** List all bind parameters.
    */
    if( nArg==2 && strcmp(azArg[1],"list")==0 ){
      sqlite3_stmt *pStmt = 0;