1 /*-------------------------------------------------------------------------
4 * #defines governing debugging behaviour in the executor
6 * XXX this is all pretty old and crufty. Newer code tends to use elog()
7 * for debug printouts, because that's more flexible than printf().
10 * Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
11 * Portions Copyright (c) 1994, Regents of the University of California
13 * src/include/executor/execdebug.h
15 *-------------------------------------------------------------------------
20 #include "executor/executor.h"
21 #include "nodes/print.h"
23 /* ----------------------------------------------------------------
26 * If you want certain debugging behaviour, then #define
27 * the variable to 1. No need to explicitly #undef by default,
28 * since we can use -D compiler options to enable features.
30 * ----------------------------------------------------------------
34 * EXEC_NESTLOOPDEBUG is a flag which turns on debugging of the
35 * nest loop node by NL_printf() and ENL_printf() in nodeNestloop.c
37 #undef EXEC_NESTLOOPDEBUG
41 * EXEC_SORTDEBUG is a flag which turns on debugging of
42 * the ExecSort() stuff by SO_printf() in nodeSort.c
48 * EXEC_MERGEJOINDEBUG is a flag which turns on debugging of
49 * the ExecMergeJoin() stuff by MJ_printf() in nodeMergejoin.c
51 #undef EXEC_MERGEJOINDEBUG
54 /* ----------------------------------------------------------------
55 * #defines controlled by above definitions
57 * Note: most of these are "incomplete" because I didn't
58 * need the ones not defined. More should be added
59 * only as necessary -cim 10/26/89
60 * ----------------------------------------------------------------
62 #define T_OR_F(b) ((b) ? "true" : "false")
63 #define NULL_OR_TUPLE(slot) (TupIsNull(slot) ? "null" : "a tuple")
66 * nest loop debugging defines
69 #ifdef EXEC_NESTLOOPDEBUG
70 #define NL_nodeDisplay(l) nodeDisplay(l)
71 #define NL_printf(s) printf(s)
72 #define NL1_printf(s, a) printf(s, a)
73 #define ENL1_printf(message) printf("ExecNestLoop: %s\n", message)
75 #define NL_nodeDisplay(l)
77 #define NL1_printf(s, a)
78 #define ENL1_printf(message)
79 #endif /* EXEC_NESTLOOPDEBUG */
82 * sort node debugging defines
86 #define SO_nodeDisplay(l) nodeDisplay(l)
87 #define SO_printf(s) printf(s)
88 #define SO1_printf(s, p) printf(s, p)
90 #define SO_nodeDisplay(l)
92 #define SO1_printf(s, p)
93 #endif /* EXEC_SORTDEBUG */
96 * merge join debugging defines
99 #ifdef EXEC_MERGEJOINDEBUG
101 #define MJ_nodeDisplay(l) nodeDisplay(l)
102 #define MJ_printf(s) printf(s)
103 #define MJ1_printf(s, p) printf(s, p)
104 #define MJ2_printf(s, p1, p2) printf(s, p1, p2)
105 #define MJ_debugtup(slot) debugtup(slot, NULL)
106 #define MJ_dump(state) ExecMergeTupleDump(state)
107 #define MJ_DEBUG_COMPARE(res) \
108 MJ1_printf(" MJCompare() returns %d\n", (res))
109 #define MJ_DEBUG_QUAL(clause, res) \
110 MJ2_printf(" ExecQual(%s, econtext) returns %s\n", \
111 CppAsString(clause), T_OR_F(res))
112 #define MJ_DEBUG_PROC_NODE(slot) \
113 MJ2_printf(" %s = ExecProcNode(...) returns %s\n", \
114 CppAsString(slot), NULL_OR_TUPLE(slot))
117 #define MJ_nodeDisplay(l)
119 #define MJ1_printf(s, p)
120 #define MJ2_printf(s, p1, p2)
121 #define MJ_debugtup(slot)
122 #define MJ_dump(state)
123 #define MJ_DEBUG_COMPARE(res)
124 #define MJ_DEBUG_QUAL(clause, res)
125 #define MJ_DEBUG_PROC_NODE(slot)
126 #endif /* EXEC_MERGEJOINDEBUG */
128 #endif /* EXECDEBUG_H */