1 files changed, 0 insertions, 258 deletions
diff --git a/contrib/tsearch2/query_cleanup.c b/contrib/tsearch2/query_cleanup.c
deleted file mode 100644
index 0d3427ff9b8..00000000000
--- a/contrib/tsearch2/query_cleanup.c
+++ /dev/null
@@ -1,258 +0,0 @@
-/*
- * Rewrite routines of query tree
- * Teodor Sigaev <teodor@sigaev.ru>
- */
-
-#include "postgres.h"
-
-#include <float.h>
-
-#include "utils/builtins.h"
-
-#include "query.h"
-#include "query_cleanup.h"
-
-typedef struct NODE
-{
-	struct NODE *left;
-	struct NODE *right;
-	ITEM	   *valnode;
-}	NODE;
-
-/*
- * make query tree from plain view of query
- */
-static NODE *
-maketree(ITEM * in)
-{
-	NODE	   *node = (NODE *) palloc(sizeof(NODE));
-
-	node->valnode = in;
-	node->right = node->left = NULL;
-	if (in->type == OPR)
-	{
-		node->right = maketree(in + 1);
-		if (in->val != (int4) '!')
-			node->left = maketree(in + in->left);
-	}
-	return node;
-}
-
-typedef struct
-{
-	ITEM	   *ptr;
-	int4		len;
-	int4		cur;
-}	PLAINTREE;
-
-static void
-plainnode(PLAINTREE * state, NODE * node)
-{
-	if (state->cur == state->len)
-	{
-		state->len *= 2;
-		state->ptr = (ITEM *) repalloc((void *) state->ptr, state->len * sizeof(ITEM));
-	}
-	memcpy((void *) &(state->ptr[state->cur]), (void *) node->valnode, sizeof(ITEM));
-	if (node->valnode->type == VAL)
-		state->cur++;
-	else if (node->valnode->val == (int4) '!')
-	{
-		state->ptr[state->cur].left = 1;
-		state->cur++;
-		plainnode(state, node->right);
-	}
-	else
-	{
-		int4		cur = state->cur;
-
-		state->cur++;
-		plainnode(state, node->right);
-		state->ptr[cur].left = state->cur - cur;
-		plainnode(state, node->left);
-	}
-	pfree(node);
-}
-
-/*
- * make plain view of tree from 'normal' view of tree
- */
-static ITEM *
-plaintree(NODE * root, int4 *len)
-{
-	PLAINTREE	pl;
-
-	pl.cur = 0;
-	pl.len = 16;
-	if (root && (root->valnode->type == VAL || root->valnode->type == OPR))
-	{
-		pl.ptr = (ITEM *) palloc(pl.len * sizeof(ITEM));
-		plainnode(&pl, root);
-	}
-	else
-		pl.ptr = NULL;
-	*len = pl.cur;
-	return pl.ptr;
-}
-
-static void
-freetree(NODE * node)
-{
-	if (!node)
-		return;
-	if (node->left)
-		freetree(node->left);
-	if (node->right)
-		freetree(node->right);
-	pfree(node);
-}
-
-/*
- * clean tree for ! operator.
- * It's usefull for debug, but in
- * other case, such view is used with search in index.
- * Operator ! always return TRUE
- */
-static NODE *
-clean_NOT_intree(NODE * node)
-{
-	if (node->valnode->type == VAL)
-		return node;
-
-	if (node->valnode->val == (int4) '!')
-	{
-		freetree(node);
-		return NULL;
-	}
-
-	/* operator & or | */
-	if (node->valnode->val == (int4) '|')
-	{
-		if ((node->left = clean_NOT_intree(node->left)) == NULL ||
-			(node->right = clean_NOT_intree(node->right)) == NULL)
-		{
-			freetree(node);
-			return NULL;
-		}
-	}
-	else
-	{
-		NODE	   *res = node;
-
-		node->left = clean_NOT_intree(node->left);
-		node->right = clean_NOT_intree(node->right);
-		if (node->left == NULL && node->right == NULL)
-		{
-			pfree(node);
-			res = NULL;
-		}
-		else if (node->left == NULL)
-		{
-			res = node->right;
-			pfree(node);
-		}
-		else if (node->right == NULL)
-		{
-			res = node->left;
-			pfree(node);
-		}
-		return res;
-	}
-	return node;
-}
-
-ITEM *
-clean_NOT_v2(ITEM * ptr, int4 *len)
-{
-	NODE	   *root = maketree(ptr);
-
-	return plaintree(clean_NOT_intree(root), len);
-}
-
-
-#ifdef V_UNKNOWN				/* exists in Windows headers */
-#undef V_UNKNOWN
-#endif
-#ifdef V_FALSE					/* exists in Solaris headers */
-#undef V_FALSE
-#endif
-
-#define V_UNKNOWN	0
-#define V_TRUE		1
-#define V_FALSE		2
-#define V_STOP		3
-
-/*
- * Clean query tree from values which is always in
- * text (stopword)
- */
-static NODE *
-clean_fakeval_intree(NODE * node, char *result)
-{
-	char		lresult = V_UNKNOWN,
-				rresult = V_UNKNOWN;
-
-	if (node->valnode->type == VAL)
-		return node;
-	else if (node->valnode->type == VALSTOP)
-	{
-		pfree(node);
-		*result = V_STOP;
-		return NULL;
-	}
-
-
-	if (node->valnode->val == (int4) '!')
-	{
-		node->right = clean_fakeval_intree(node->right, &rresult);
-		if (!node->right)
-		{
-			*result = V_STOP;
-			freetree(node);
-			return NULL;
-		}
-	}
-	else
-	{
-		NODE	   *res = node;
-
-		node->left = clean_fakeval_intree(node->left, &lresult);
-		node->right = clean_fakeval_intree(node->right, &rresult);
-		if (lresult == V_STOP && rresult == V_STOP)
-		{
-			freetree(node);
-			*result = V_STOP;
-			return NULL;
-		}
-		else if (lresult == V_STOP)
-		{
-			res = node->right;
-			pfree(node);
-		}
-		else if (rresult == V_STOP)
-		{
-			res = node->left;
-			pfree(node);
-		}
-		return res;
-	}
-	return node;
-}
-
-ITEM *
-clean_fakeval_v2(ITEM * ptr, int4 *len)
-{
-	NODE	   *root = maketree(ptr);
-	char		result = V_UNKNOWN;
-	NODE	   *resroot;
-
-	resroot = clean_fakeval_intree(root, &result);
-	if (result != V_UNKNOWN)
-	{
-		elog(NOTICE, "query contains only stopword(s) or doesn't contain lexeme(s), ignored");
-		*len = 0;
-		return NULL;
-	}
-
-	return plaintree(resroot, len);
-}