LCOV - code coverage report
Current view: top level - contrib/ltree - ltxtquery_op.c (source / functions) Coverage Total Hit
Test: PostgreSQL 19devel Lines: 95.2 % 42 40
Test Date: 2026-02-28 15:14:49 Functions: 83.3 % 6 5
Legend: Lines:     hit not hit

            Line data    Source code
       1              : /*
       2              :  * txtquery operations with ltree
       3              :  * Teodor Sigaev <teodor@stack.net>
       4              :  * contrib/ltree/ltxtquery_op.c
       5              :  */
       6              : #include "postgres.h"
       7              : 
       8              : #include <ctype.h>
       9              : 
      10              : #include "ltree.h"
      11              : #include "miscadmin.h"
      12              : 
      13            3 : PG_FUNCTION_INFO_V1(ltxtq_exec);
      14            2 : PG_FUNCTION_INFO_V1(ltxtq_rexec);
      15              : 
      16              : /*
      17              :  * check for boolean condition
      18              :  */
      19              : bool
      20        25647 : ltree_execute(ITEM *curitem, void *checkval, bool calcnot, bool (*chkcond) (void *checkval, ITEM *val))
      21              : {
      22              :     /* since this function recurses, it could be driven to stack overflow */
      23        25647 :     check_stack_depth();
      24              : 
      25        25647 :     if (curitem->type == VAL)
      26        14641 :         return (*chkcond) (checkval, curitem);
      27        11006 :     else if (curitem->val == (int32) '!')
      28              :     {
      29              :         return calcnot ?
      30            3 :             ((ltree_execute(curitem + 1, checkval, calcnot, chkcond)) ? false : true)
      31            6 :             : true;
      32              :     }
      33        11003 :     else if (curitem->val == (int32) '&')
      34              :     {
      35        11001 :         if (ltree_execute(curitem + curitem->left, checkval, calcnot, chkcond))
      36         3637 :             return ltree_execute(curitem + 1, checkval, calcnot, chkcond);
      37              :         else
      38         7364 :             return false;
      39              :     }
      40              :     else
      41              :     {                           /* |-operator */
      42            2 :         if (ltree_execute(curitem + curitem->left, checkval, calcnot, chkcond))
      43            1 :             return true;
      44              :         else
      45            1 :             return ltree_execute(curitem + 1, checkval, calcnot, chkcond);
      46              :     }
      47              : }
      48              : 
      49              : typedef struct
      50              : {
      51              :     ltree      *node;
      52              :     char       *operand;
      53              : } CHKVAL;
      54              : 
      55              : static bool
      56        10763 : checkcondition_str(void *checkval, ITEM *val)
      57              : {
      58        10763 :     ltree_level *level = LTREE_FIRST(((CHKVAL *) checkval)->node);
      59        10763 :     int         tlen = ((CHKVAL *) checkval)->node->numlevel;
      60        10763 :     char       *op = ((CHKVAL *) checkval)->operand + val->distance;
      61        10763 :     bool        prefix = (val->flag & LVAR_ANYEND);
      62        10763 :     bool        ci = (val->flag & LVAR_INCASE);
      63              : 
      64        72305 :     while (tlen > 0)
      65              :     {
      66        64192 :         if (val->flag & LVAR_SUBLEXEME)
      67              :         {
      68            4 :             if (compare_subnode(level, op, val->length, prefix, ci))
      69            1 :                 return true;
      70              :         }
      71        64188 :         else if (ltree_label_match(op, val->length, level->name, level->len,
      72              :                                    prefix, ci))
      73         2649 :             return true;
      74              : 
      75        61542 :         tlen--;
      76        61542 :         level = LEVEL_NEXT(level);
      77              :     }
      78              : 
      79         8113 :     return false;
      80              : }
      81              : 
      82              : Datum
      83         8680 : ltxtq_exec(PG_FUNCTION_ARGS)
      84              : {
      85         8680 :     ltree      *val = PG_GETARG_LTREE_P(0);
      86         8680 :     ltxtquery  *query = PG_GETARG_LTXTQUERY_P(1);
      87              :     CHKVAL      chkval;
      88              :     bool        result;
      89              : 
      90         8680 :     chkval.node = val;
      91         8680 :     chkval.operand = GETOPERAND(query);
      92              : 
      93         8680 :     result = ltree_execute(GETQUERY(query),
      94              :                            &chkval,
      95              :                            true,
      96              :                            checkcondition_str);
      97              : 
      98         8680 :     PG_FREE_IF_COPY(val, 0);
      99         8680 :     PG_FREE_IF_COPY(query, 1);
     100         8680 :     PG_RETURN_BOOL(result);
     101              : }
     102              : 
     103              : Datum
     104            0 : ltxtq_rexec(PG_FUNCTION_ARGS)
     105              : {
     106            0 :     PG_RETURN_DATUM(DirectFunctionCall2(ltxtq_exec,
     107              :                                         PG_GETARG_DATUM(1),
     108              :                                         PG_GETARG_DATUM(0)
     109              :                                         ));
     110              : }
        

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