PostgreSQL Source Code  git master
readfuncs.c File Reference
#include "postgres.h"
#include <math.h>
#include "miscadmin.h"
#include "nodes/bitmapset.h"
#include "nodes/readfuncs.h"
#include "readfuncs.funcs.c"
#include "readfuncs.switch.c"
Include dependency graph for readfuncs.c:

Go to the source code of this file.

Macros

#define READ_LOCALS_NO_FIELDS(nodeTypeName)    nodeTypeName *local_node = makeNode(nodeTypeName)
 
#define READ_TEMP_LOCALS()
 
#define READ_LOCALS(nodeTypeName)
 
#define READ_INT_FIELD(fldname)
 
#define READ_UINT_FIELD(fldname)
 
#define READ_UINT64_FIELD(fldname)
 
#define READ_LONG_FIELD(fldname)
 
#define READ_OID_FIELD(fldname)
 
#define READ_CHAR_FIELD(fldname)
 
#define READ_ENUM_FIELD(fldname, enumtype)
 
#define READ_FLOAT_FIELD(fldname)
 
#define READ_BOOL_FIELD(fldname)
 
#define READ_STRING_FIELD(fldname)
 
#define READ_LOCATION_FIELD(fldname)
 
#define READ_NODE_FIELD(fldname)
 
#define READ_BITMAPSET_FIELD(fldname)
 
#define READ_ATTRNUMBER_ARRAY(fldname, len)
 
#define READ_OID_ARRAY(fldname, len)
 
#define READ_INT_ARRAY(fldname, len)
 
#define READ_BOOL_ARRAY(fldname, len)
 
#define READ_DONE()    return local_node
 
#define atoui(x)   ((unsigned int) strtoul((x), NULL, 10))
 
#define strtobool(x)   ((*(x) == 't') ? true : false)
 
#define MATCH(tokname, namelen)    (length == namelen && memcmp(token, tokname, namelen) == 0)
 
#define READ_SCALAR_ARRAY(fnname, datatype, convfunc)
 

Functions

static char * nullable_string (const char *token, int length)
 
static Bitmapset_readBitmapset (void)
 
BitmapsetreadBitmapset (void)
 
static Const_readConst (void)
 
static BoolExpr_readBoolExpr (void)
 
static A_Const_readA_Const (void)
 
static RangeTblEntry_readRangeTblEntry (void)
 
static A_Expr_readA_Expr (void)
 
static ExtensibleNode_readExtensibleNode (void)
 
NodeparseNodeString (void)
 
Datum readDatum (bool typbyval)
 

Macro Definition Documentation

◆ atoui

#define atoui (   x)    ((unsigned int) strtoul((x), NULL, 10))

Definition at line 177 of file readfuncs.c.

◆ MATCH

#define MATCH (   tokname,
  namelen 
)     (length == namelen && memcmp(token, tokname, namelen) == 0)

◆ READ_ATTRNUMBER_ARRAY

#define READ_ATTRNUMBER_ARRAY (   fldname,
  len 
)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
local_node->fldname = readAttrNumberCols(len)
#define token
Definition: indent_globs.h:126
int16 * readAttrNumberCols(int numCols)
const void size_t len
const char * pg_strtok(int *length)
Definition: read.c:153

Definition at line 147 of file readfuncs.c.

◆ READ_BITMAPSET_FIELD

#define READ_BITMAPSET_FIELD (   fldname)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
(void) token; /* in case not used elsewhere */ \
local_node->fldname = _readBitmapset()
static Bitmapset * _readBitmapset(void)
Definition: readfuncs.c:203

Definition at line 141 of file readfuncs.c.

◆ READ_BOOL_ARRAY

#define READ_BOOL_ARRAY (   fldname,
  len 
)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
local_node->fldname = readBoolCols(len)
bool * readBoolCols(int numCols)

Definition at line 162 of file readfuncs.c.

◆ READ_BOOL_FIELD

#define READ_BOOL_FIELD (   fldname)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = strtobool(token)
#define strtobool(x)
Definition: readfuncs.c:179

Definition at line 109 of file readfuncs.c.

◆ READ_CHAR_FIELD

#define READ_CHAR_FIELD (   fldname)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
/* avoid overhead of calling debackslash() for one char */ \
local_node->fldname = (length == 0) ? '\0' : (token[0] == '\\' ? token[1] : token[0])

Definition at line 90 of file readfuncs.c.

◆ READ_DONE

#define READ_DONE ( )     return local_node

Definition at line 167 of file readfuncs.c.

◆ READ_ENUM_FIELD

#define READ_ENUM_FIELD (   fldname,
  enumtype 
)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = (enumtype) atoi(token)

Definition at line 97 of file readfuncs.c.

◆ READ_FLOAT_FIELD

#define READ_FLOAT_FIELD (   fldname)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = atof(token)

Definition at line 103 of file readfuncs.c.

◆ READ_INT_ARRAY

#define READ_INT_ARRAY (   fldname,
  len 
)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
local_node->fldname = readIntCols(len)
int * readIntCols(int numCols)

Definition at line 157 of file readfuncs.c.

◆ READ_INT_FIELD

#define READ_INT_FIELD (   fldname)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = atoi(token)

Definition at line 60 of file readfuncs.c.

◆ READ_LOCALS

#define READ_LOCALS (   nodeTypeName)
Value:
READ_LOCALS_NO_FIELDS(nodeTypeName); \
READ_TEMP_LOCALS()
#define READ_LOCALS_NO_FIELDS(nodeTypeName)
Definition: readfuncs.c:46

Definition at line 55 of file readfuncs.c.

◆ READ_LOCALS_NO_FIELDS

#define READ_LOCALS_NO_FIELDS (   nodeTypeName)     nodeTypeName *local_node = makeNode(nodeTypeName)

Definition at line 46 of file readfuncs.c.

◆ READ_LOCATION_FIELD

#define READ_LOCATION_FIELD (   fldname)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
(void) token; /* in case not used elsewhere */ \
local_node->fldname = -1 /* set field to "unknown" */

Definition at line 127 of file readfuncs.c.

◆ READ_LONG_FIELD

#define READ_LONG_FIELD (   fldname)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = atol(token)

Definition at line 78 of file readfuncs.c.

◆ READ_NODE_FIELD

#define READ_NODE_FIELD (   fldname)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
(void) token; /* in case not used elsewhere */ \
local_node->fldname = nodeRead(NULL, 0)
void * nodeRead(const char *token, int tok_len)
Definition: read.c:320

Definition at line 135 of file readfuncs.c.

◆ READ_OID_ARRAY

#define READ_OID_ARRAY (   fldname,
  len 
)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
local_node->fldname = readOidCols(len)
Oid * readOidCols(int numCols)

Definition at line 152 of file readfuncs.c.

◆ READ_OID_FIELD

#define READ_OID_FIELD (   fldname)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = atooid(token)
#define atooid(x)
Definition: postgres_ext.h:42

Definition at line 84 of file readfuncs.c.

◆ READ_SCALAR_ARRAY

#define READ_SCALAR_ARRAY (   fnname,
  datatype,
  convfunc 
)
Value:
datatype * \
fnname(int numCols) \
{ \
datatype *vals; \
READ_TEMP_LOCALS(); \
token = pg_strtok(&length); \
if (token == NULL) \
elog(ERROR, "incomplete scalar array"); \
if (length == 0) \
return NULL; /* it was "<>", so return NULL pointer */ \
if (length != 1 || token[0] != '(') \
elog(ERROR, "unrecognized token: \"%.*s\"", length, token); \
vals = (datatype *) palloc(numCols * sizeof(datatype)); \
for (int i = 0; i < numCols; i++) \
{ \
token = pg_strtok(&length); \
if (token == NULL || token[0] == ')') \
elog(ERROR, "incomplete scalar array"); \
vals[i] = convfunc(token); \
} \
token = pg_strtok(&length); \
if (token == NULL || length != 1 || token[0] != ')') \
elog(ERROR, "incomplete scalar array"); \
return vals; \
}
#define ERROR
Definition: elog.h:39
int i
Definition: isn.c:72
void * palloc(Size size)
Definition: mcxt.c:1317

Definition at line 653 of file readfuncs.c.

◆ READ_STRING_FIELD

#define READ_STRING_FIELD (   fldname)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = nullable_string(token, length)
static char * nullable_string(const char *token, int length)
Definition: readfuncs.c:182

Definition at line 115 of file readfuncs.c.

◆ READ_TEMP_LOCALS

#define READ_TEMP_LOCALS ( )
Value:
const char *token; \
int length

Definition at line 50 of file readfuncs.c.

◆ READ_UINT64_FIELD

#define READ_UINT64_FIELD (   fldname)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = strtou64(token, NULL, 10)

Definition at line 72 of file readfuncs.c.

◆ READ_UINT_FIELD

#define READ_UINT_FIELD (   fldname)
Value:
token = pg_strtok(&length); /* skip :fldname */ \
token = pg_strtok(&length); /* get field value */ \
local_node->fldname = atoui(token)
#define atoui(x)
Definition: readfuncs.c:177

Definition at line 66 of file readfuncs.c.

◆ strtobool

#define strtobool (   x)    ((*(x) == 't') ? true : false)

Definition at line 179 of file readfuncs.c.

Function Documentation

◆ _readA_Const()

static A_Const* _readA_Const ( void  )
static

Definition at line 304 of file readfuncs.c.

305 {
307 
308  /* We expect either NULL or :val here */
309  token = pg_strtok(&length);
310  if (length == 4 && strncmp(token, "NULL", 4) == 0)
311  local_node->isnull = true;
312  else
313  {
314  union ValUnion *tmp = nodeRead(NULL, 0);
315 
316  /* To forestall valgrind complaints, copy only the valid data */
317  switch (nodeTag(tmp))
318  {
319  case T_Integer:
320  memcpy(&local_node->val, tmp, sizeof(Integer));
321  break;
322  case T_Float:
323  memcpy(&local_node->val, tmp, sizeof(Float));
324  break;
325  case T_Boolean:
326  memcpy(&local_node->val, tmp, sizeof(Boolean));
327  break;
328  case T_String:
329  memcpy(&local_node->val, tmp, sizeof(String));
330  break;
331  case T_BitString:
332  memcpy(&local_node->val, tmp, sizeof(BitString));
333  break;
334  default:
335  elog(ERROR, "unrecognized node type: %d",
336  (int) nodeTag(tmp));
337  break;
338  }
339  }
340 
341  READ_LOCATION_FIELD(location);
342 
343  READ_DONE();
344 }
#define elog(elevel,...)
Definition: elog.h:225
#define nodeTag(nodeptr)
Definition: nodes.h:133
#define READ_LOCATION_FIELD(fldname)
Definition: readfuncs.c:127
#define READ_LOCALS(nodeTypeName)
Definition: readfuncs.c:55
#define READ_DONE()
Definition: readfuncs.c:167
Definition: value.h:56
Definition: value.h:48
Definition: value.h:29
Definition: value.h:64

References elog, ERROR, nodeRead(), nodeTag, pg_strtok(), READ_DONE, READ_LOCALS, READ_LOCATION_FIELD, and token.

◆ _readA_Expr()

static A_Expr* _readA_Expr ( void  )
static

Definition at line 442 of file readfuncs.c.

443 {
445 
446  token = pg_strtok(&length);
447 
448  if (length == 3 && strncmp(token, "ANY", 3) == 0)
449  {
450  local_node->kind = AEXPR_OP_ANY;
452  }
453  else if (length == 3 && strncmp(token, "ALL", 3) == 0)
454  {
455  local_node->kind = AEXPR_OP_ALL;
457  }
458  else if (length == 8 && strncmp(token, "DISTINCT", 8) == 0)
459  {
460  local_node->kind = AEXPR_DISTINCT;
462  }
463  else if (length == 12 && strncmp(token, "NOT_DISTINCT", 12) == 0)
464  {
465  local_node->kind = AEXPR_NOT_DISTINCT;
467  }
468  else if (length == 6 && strncmp(token, "NULLIF", 6) == 0)
469  {
470  local_node->kind = AEXPR_NULLIF;
472  }
473  else if (length == 2 && strncmp(token, "IN", 2) == 0)
474  {
475  local_node->kind = AEXPR_IN;
477  }
478  else if (length == 4 && strncmp(token, "LIKE", 4) == 0)
479  {
480  local_node->kind = AEXPR_LIKE;
482  }
483  else if (length == 5 && strncmp(token, "ILIKE", 5) == 0)
484  {
485  local_node->kind = AEXPR_ILIKE;
487  }
488  else if (length == 7 && strncmp(token, "SIMILAR", 7) == 0)
489  {
490  local_node->kind = AEXPR_SIMILAR;
492  }
493  else if (length == 7 && strncmp(token, "BETWEEN", 7) == 0)
494  {
495  local_node->kind = AEXPR_BETWEEN;
497  }
498  else if (length == 11 && strncmp(token, "NOT_BETWEEN", 11) == 0)
499  {
500  local_node->kind = AEXPR_NOT_BETWEEN;
502  }
503  else if (length == 11 && strncmp(token, "BETWEEN_SYM", 11) == 0)
504  {
505  local_node->kind = AEXPR_BETWEEN_SYM;
507  }
508  else if (length == 15 && strncmp(token, "NOT_BETWEEN_SYM", 15) == 0)
509  {
510  local_node->kind = AEXPR_NOT_BETWEEN_SYM;
512  }
513  else if (length == 5 && strncmp(token, ":name", 5) == 0)
514  {
515  local_node->kind = AEXPR_OP;
516  local_node->name = nodeRead(NULL, 0);
517  }
518  else
519  elog(ERROR, "unrecognized A_Expr kind: \"%.*s\"", length, token);
520 
521  READ_NODE_FIELD(lexpr);
522  READ_NODE_FIELD(rexpr);
523  READ_LOCATION_FIELD(location);
524 
525  READ_DONE();
526 }
@ AEXPR_BETWEEN
Definition: parsenodes.h:325
@ AEXPR_NULLIF
Definition: parsenodes.h:320
@ AEXPR_NOT_DISTINCT
Definition: parsenodes.h:319
@ AEXPR_BETWEEN_SYM
Definition: parsenodes.h:327
@ AEXPR_NOT_BETWEEN_SYM
Definition: parsenodes.h:328
@ AEXPR_ILIKE
Definition: parsenodes.h:323
@ AEXPR_IN
Definition: parsenodes.h:321
@ AEXPR_NOT_BETWEEN
Definition: parsenodes.h:326
@ AEXPR_DISTINCT
Definition: parsenodes.h:318
@ AEXPR_SIMILAR
Definition: parsenodes.h:324
@ AEXPR_LIKE
Definition: parsenodes.h:322
@ AEXPR_OP
Definition: parsenodes.h:315
@ AEXPR_OP_ANY
Definition: parsenodes.h:316
@ AEXPR_OP_ALL
Definition: parsenodes.h:317
#define READ_NODE_FIELD(fldname)
Definition: readfuncs.c:135
const char * name

References AEXPR_BETWEEN, AEXPR_BETWEEN_SYM, AEXPR_DISTINCT, AEXPR_ILIKE, AEXPR_IN, AEXPR_LIKE, AEXPR_NOT_BETWEEN, AEXPR_NOT_BETWEEN_SYM, AEXPR_NOT_DISTINCT, AEXPR_NULLIF, AEXPR_OP, AEXPR_OP_ALL, AEXPR_OP_ANY, AEXPR_SIMILAR, elog, ERROR, name, nodeRead(), pg_strtok(), READ_DONE, READ_LOCALS, READ_LOCATION_FIELD, READ_NODE_FIELD, and token.

◆ _readBitmapset()

static Bitmapset* _readBitmapset ( void  )
static

Definition at line 203 of file readfuncs.c.

204 {
205  Bitmapset *result = NULL;
206 
208 
209  token = pg_strtok(&length);
210  if (token == NULL)
211  elog(ERROR, "incomplete Bitmapset structure");
212  if (length != 1 || token[0] != '(')
213  elog(ERROR, "unrecognized token: \"%.*s\"", length, token);
214 
215  token = pg_strtok(&length);
216  if (token == NULL)
217  elog(ERROR, "incomplete Bitmapset structure");
218  if (length != 1 || token[0] != 'b')
219  elog(ERROR, "unrecognized token: \"%.*s\"", length, token);
220 
221  for (;;)
222  {
223  int val;
224  char *endptr;
225 
226  token = pg_strtok(&length);
227  if (token == NULL)
228  elog(ERROR, "unterminated Bitmapset structure");
229  if (length == 1 && token[0] == ')')
230  break;
231  val = (int) strtol(token, &endptr, 10);
232  if (endptr != token + length)
233  elog(ERROR, "unrecognized integer: \"%.*s\"", length, token);
234  result = bms_add_member(result, val);
235  }
236 
237  return result;
238 }
Bitmapset * bms_add_member(Bitmapset *a, int x)
Definition: bitmapset.c:815
long val
Definition: informix.c:689
#define READ_TEMP_LOCALS()
Definition: readfuncs.c:50

References bms_add_member(), elog, ERROR, pg_strtok(), READ_TEMP_LOCALS, token, and val.

Referenced by readBitmapset().

◆ _readBoolExpr()

static BoolExpr* _readBoolExpr ( void  )
static

Definition at line 281 of file readfuncs.c.

282 {
284 
285  /* do-it-yourself enum representation */
286  token = pg_strtok(&length); /* skip :boolop */
287  token = pg_strtok(&length); /* get field value */
288  if (length == 3 && strncmp(token, "and", 3) == 0)
289  local_node->boolop = AND_EXPR;
290  else if (length == 2 && strncmp(token, "or", 2) == 0)
291  local_node->boolop = OR_EXPR;
292  else if (length == 3 && strncmp(token, "not", 3) == 0)
293  local_node->boolop = NOT_EXPR;
294  else
295  elog(ERROR, "unrecognized boolop \"%.*s\"", length, token);
296 
298  READ_LOCATION_FIELD(location);
299 
300  READ_DONE();
301 }
@ AND_EXPR
Definition: primnodes.h:931
@ OR_EXPR
Definition: primnodes.h:931
@ NOT_EXPR
Definition: primnodes.h:931

References AND_EXPR, generate_unaccent_rules::args, elog, ERROR, NOT_EXPR, OR_EXPR, pg_strtok(), READ_DONE, READ_LOCALS, READ_LOCATION_FIELD, READ_NODE_FIELD, and token.

◆ _readConst()

static Const* _readConst ( void  )
static

Definition at line 259 of file readfuncs.c.

260 {
262 
263  READ_OID_FIELD(consttype);
264  READ_INT_FIELD(consttypmod);
265  READ_OID_FIELD(constcollid);
266  READ_INT_FIELD(constlen);
267  READ_BOOL_FIELD(constbyval);
268  READ_BOOL_FIELD(constisnull);
269  READ_LOCATION_FIELD(location);
270 
271  token = pg_strtok(&length); /* skip :constvalue */
272  if (local_node->constisnull)
273  token = pg_strtok(&length); /* skip "<>" */
274  else
275  local_node->constvalue = readDatum(local_node->constbyval);
276 
277  READ_DONE();
278 }
#define READ_INT_FIELD(fldname)
Definition: readfuncs.c:60
#define READ_OID_FIELD(fldname)
Definition: readfuncs.c:84
Datum readDatum(bool typbyval)
Definition: readfuncs.c:592
#define READ_BOOL_FIELD(fldname)
Definition: readfuncs.c:109

References pg_strtok(), READ_BOOL_FIELD, READ_DONE, READ_INT_FIELD, READ_LOCALS, READ_LOCATION_FIELD, READ_OID_FIELD, readDatum(), and token.

◆ _readExtensibleNode()

static ExtensibleNode* _readExtensibleNode ( void  )
static

Definition at line 529 of file readfuncs.c.

530 {
531  const ExtensibleNodeMethods *methods;
532  ExtensibleNode *local_node;
533  const char *extnodename;
534 
536 
537  token = pg_strtok(&length); /* skip :extnodename */
538  token = pg_strtok(&length); /* get extnodename */
539 
540  extnodename = nullable_string(token, length);
541  if (!extnodename)
542  elog(ERROR, "extnodename has to be supplied");
543  methods = GetExtensibleNodeMethods(extnodename, false);
544 
545  local_node = (ExtensibleNode *) newNode(methods->node_size,
546  T_ExtensibleNode);
547  local_node->extnodename = extnodename;
548 
549  /* deserialize the private fields */
550  methods->nodeRead(local_node);
551 
552  READ_DONE();
553 }
const ExtensibleNodeMethods * GetExtensibleNodeMethods(const char *extnodename, bool missing_ok)
Definition: extensible.c:125
static Node * newNode(size_t size, NodeTag tag)
Definition: nodes.h:144
void(* nodeRead)(struct ExtensibleNode *node)
Definition: extensible.h:72
const char * extnodename
Definition: extensible.h:37

References elog, ERROR, ExtensibleNode::extnodename, GetExtensibleNodeMethods(), newNode(), ExtensibleNodeMethods::node_size, ExtensibleNodeMethods::nodeRead, nullable_string(), pg_strtok(), READ_DONE, READ_TEMP_LOCALS, and token.

◆ _readRangeTblEntry()

static RangeTblEntry* _readRangeTblEntry ( void  )
static

Definition at line 347 of file readfuncs.c.

348 {
350 
351  READ_NODE_FIELD(alias);
352  READ_NODE_FIELD(eref);
353  READ_ENUM_FIELD(rtekind, RTEKind);
354 
355  switch (local_node->rtekind)
356  {
357  case RTE_RELATION:
358  READ_OID_FIELD(relid);
359  READ_BOOL_FIELD(inh);
360  READ_CHAR_FIELD(relkind);
361  READ_INT_FIELD(rellockmode);
362  READ_UINT_FIELD(perminfoindex);
363  READ_NODE_FIELD(tablesample);
364  break;
365  case RTE_SUBQUERY:
366  READ_NODE_FIELD(subquery);
367  READ_BOOL_FIELD(security_barrier);
368  /* we re-use these RELATION fields, too: */
369  READ_OID_FIELD(relid);
370  READ_BOOL_FIELD(inh);
371  READ_CHAR_FIELD(relkind);
372  READ_INT_FIELD(rellockmode);
373  READ_UINT_FIELD(perminfoindex);
374  break;
375  case RTE_JOIN:
376  READ_ENUM_FIELD(jointype, JoinType);
377  READ_INT_FIELD(joinmergedcols);
378  READ_NODE_FIELD(joinaliasvars);
379  READ_NODE_FIELD(joinleftcols);
380  READ_NODE_FIELD(joinrightcols);
381  READ_NODE_FIELD(join_using_alias);
382  break;
383  case RTE_FUNCTION:
385  READ_BOOL_FIELD(funcordinality);
386  break;
387  case RTE_TABLEFUNC:
388  READ_NODE_FIELD(tablefunc);
389  /* The RTE must have a copy of the column type info, if any */
390  if (local_node->tablefunc)
391  {
392  TableFunc *tf = local_node->tablefunc;
393 
394  local_node->coltypes = tf->coltypes;
395  local_node->coltypmods = tf->coltypmods;
396  local_node->colcollations = tf->colcollations;
397  }
398  break;
399  case RTE_VALUES:
400  READ_NODE_FIELD(values_lists);
401  READ_NODE_FIELD(coltypes);
402  READ_NODE_FIELD(coltypmods);
403  READ_NODE_FIELD(colcollations);
404  break;
405  case RTE_CTE:
406  READ_STRING_FIELD(ctename);
407  READ_UINT_FIELD(ctelevelsup);
408  READ_BOOL_FIELD(self_reference);
409  READ_NODE_FIELD(coltypes);
410  READ_NODE_FIELD(coltypmods);
411  READ_NODE_FIELD(colcollations);
412  break;
413  case RTE_NAMEDTUPLESTORE:
414  READ_STRING_FIELD(enrname);
415  READ_FLOAT_FIELD(enrtuples);
416  READ_NODE_FIELD(coltypes);
417  READ_NODE_FIELD(coltypmods);
418  READ_NODE_FIELD(colcollations);
419  /* we re-use these RELATION fields, too: */
420  READ_OID_FIELD(relid);
421  break;
422  case RTE_RESULT:
423  /* no extra fields */
424  break;
425  case RTE_GROUP:
426  READ_NODE_FIELD(groupexprs);
427  break;
428  default:
429  elog(ERROR, "unrecognized RTE kind: %d",
430  (int) local_node->rtekind);
431  break;
432  }
433 
434  READ_BOOL_FIELD(lateral);
435  READ_BOOL_FIELD(inFromCl);
436  READ_NODE_FIELD(securityQuals);
437 
438  READ_DONE();
439 }
JoinType
Definition: nodes.h:288
RTEKind
Definition: parsenodes.h:1016
@ RTE_JOIN
Definition: parsenodes.h:1019
@ RTE_CTE
Definition: parsenodes.h:1023
@ RTE_NAMEDTUPLESTORE
Definition: parsenodes.h:1024
@ RTE_VALUES
Definition: parsenodes.h:1022
@ RTE_SUBQUERY
Definition: parsenodes.h:1018
@ RTE_RESULT
Definition: parsenodes.h:1025
@ RTE_FUNCTION
Definition: parsenodes.h:1020
@ RTE_TABLEFUNC
Definition: parsenodes.h:1021
@ RTE_GROUP
Definition: parsenodes.h:1028
@ RTE_RELATION
Definition: parsenodes.h:1017
#define READ_UINT_FIELD(fldname)
Definition: readfuncs.c:66
#define READ_CHAR_FIELD(fldname)
Definition: readfuncs.c:90
#define READ_STRING_FIELD(fldname)
Definition: readfuncs.c:115
#define READ_FLOAT_FIELD(fldname)
Definition: readfuncs.c:103
#define READ_ENUM_FIELD(fldname, enumtype)
Definition: readfuncs.c:97
static const struct fns functions
Definition: regcomp.c:358

References elog, ERROR, functions, READ_BOOL_FIELD, READ_CHAR_FIELD, READ_DONE, READ_ENUM_FIELD, READ_FLOAT_FIELD, READ_INT_FIELD, READ_LOCALS, READ_NODE_FIELD, READ_OID_FIELD, READ_STRING_FIELD, READ_UINT_FIELD, RTE_CTE, RTE_FUNCTION, RTE_GROUP, RTE_JOIN, RTE_NAMEDTUPLESTORE, RTE_RELATION, RTE_RESULT, RTE_SUBQUERY, RTE_TABLEFUNC, and RTE_VALUES.

◆ nullable_string()

static char* nullable_string ( const char *  token,
int  length 
)
static

Definition at line 182 of file readfuncs.c.

183 {
184  /* outToken emits <> for NULL, and pg_strtok makes that an empty string */
185  if (length == 0)
186  return NULL;
187  /* outToken emits "" for empty string */
188  if (length == 2 && token[0] == '"' && token[1] == '"')
189  return pstrdup("");
190  /* otherwise, we must remove protective backslashes added by outToken */
191  return debackslash(token, length);
192 }
char * pstrdup(const char *in)
Definition: mcxt.c:1696
char * debackslash(const char *token, int length)
Definition: read.c:214

References debackslash(), pstrdup(), and token.

Referenced by _readExtensibleNode().

◆ parseNodeString()

Node* parseNodeString ( void  )

Definition at line 565 of file readfuncs.c.

566 {
568 
569  /* Guard against stack overflow due to overly complex expressions */
571 
572  token = pg_strtok(&length);
573 
574 #define MATCH(tokname, namelen) \
575  (length == namelen && memcmp(token, tokname, namelen) == 0)
576 
577 #include "readfuncs.switch.c"
578 
579  elog(ERROR, "badly formatted node string \"%.32s\"...", token);
580  return NULL; /* keep compiler quiet */
581 }
void check_stack_depth(void)
Definition: postgres.c:3574

References check_stack_depth(), elog, ERROR, pg_strtok(), READ_TEMP_LOCALS, and token.

Referenced by nodeRead().

◆ readBitmapset()

Bitmapset* readBitmapset ( void  )

Definition at line 245 of file readfuncs.c.

246 {
247  return _readBitmapset();
248 }

References _readBitmapset().

◆ readDatum()

Datum readDatum ( bool  typbyval)

Definition at line 592 of file readfuncs.c.

593 {
594  Size length,
595  i;
596  int tokenLength;
597  const char *token;
598  Datum res;
599  char *s;
600 
601  /*
602  * read the actual length of the value
603  */
604  token = pg_strtok(&tokenLength);
605  length = atoui(token);
606 
607  token = pg_strtok(&tokenLength); /* read the '[' */
608  if (token == NULL || token[0] != '[')
609  elog(ERROR, "expected \"[\" to start datum, but got \"%s\"; length = %zu",
610  token ? token : "[NULL]", length);
611 
612  if (typbyval)
613  {
614  if (length > (Size) sizeof(Datum))
615  elog(ERROR, "byval datum but length = %zu", length);
616  res = (Datum) 0;
617  s = (char *) (&res);
618  for (i = 0; i < (Size) sizeof(Datum); i++)
619  {
620  token = pg_strtok(&tokenLength);
621  s[i] = (char) atoi(token);
622  }
623  }
624  else if (length <= 0)
625  res = (Datum) NULL;
626  else
627  {
628  s = (char *) palloc(length);
629  for (i = 0; i < length; i++)
630  {
631  token = pg_strtok(&tokenLength);
632  s[i] = (char) atoi(token);
633  }
634  res = PointerGetDatum(s);
635  }
636 
637  token = pg_strtok(&tokenLength); /* read the ']' */
638  if (token == NULL || token[0] != ']')
639  elog(ERROR, "expected \"]\" to end datum, but got \"%s\"; length = %zu",
640  token ? token : "[NULL]", length);
641 
642  return res;
643 }
size_t Size
Definition: c.h:559
static Datum PointerGetDatum(const void *X)
Definition: postgres.h:322
uintptr_t Datum
Definition: postgres.h:64

References atoui, elog, ERROR, i, palloc(), pg_strtok(), PointerGetDatum(), res, and token.

Referenced by _readConst().