external
/
citus
mirror of https://github.com/citusdata/citus.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Use text_substr for getting top comment

pull/6753/head
Gokhan Gulbiz 2023-03-20 08:46:22 +03:00
parent 5929fda143
commit 9531cfd3bf
No known key found for this signature in database
GPG Key ID: 608EF06B6BD1B45B
1 changed files with 4 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
src/backend/distributed/utils/attribute.c
View File

@ -63,7 +63,6 @@ static int CreateTenantStats(MultiTenantMonitor *monitor);
static int FindTenantStats(MultiTenantMonitor *monitor);
static size_t MultiTenantMonitorshmemSize(void);
static char * ExtractTopComment(const char *inputString);
static char * Substring(const char *str, int start, int end);
static char * EscapeCommentChars(const char *str);
static char * UnescapeCommentChars(const char *str);
@ -639,7 +638,10 @@ ExtractTopComment(const char *inputString)
if (commentEndCharsIndex > commentStartCharsLength)
{
return Substring(inputString, commentStartCharsLength, commentEndCharsIndex);
Datum substringTextDatum = DirectFunctionCall3(text_substr, PointerGetDatum(inputString),
Int32GetDatum(commentStartCharsLength),
Int32GetDatum(commentEndCharsIndex - commentStartCharsLength));
return TextDatumGetCString(substringTextDatum);
}
else
{
@ -647,32 +649,6 @@ ExtractTopComment(const char *inputString)
}
}
/* Extracts a substring from the input string between the specified start and end indices.*/
static char *
Substring(const char *str, int start, int end)
{
int len = strlen(str);
/* Ensure start and end are within the bounds of the string */
if (start < 0 || end > len || start > end)
{
return NULL;
}
/* Allocate memory for the substring */
char *substr = (char *) palloc((end - start + 1) * sizeof(char));
/* Copy the substring to the new memory location */
strncpy_s(substr, end - start + 1, str + start, end - start);
/* Add null terminator to end the substring */
substr[end - start] = '\0';
return substr;
}
/* EscapeCommentChars adds a backslash before each occurrence of '*' or '/' in the input string */
static char *
EscapeCommentChars(const char *str)