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Use text_substr for getting top comment

pull/6763/head^2
Gokhan Gulbiz 2023-03-20 08:46:22 +03:00
parent 905cc5b4f3
commit fc23fd5061
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GPG Key ID: 608EF06B6BD1B45B
1 changed files with 4 additions and 28 deletions
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32
src/backend/distributed/utils/attribute.c
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@ -67,7 +67,6 @@ static int CreateTenantStats(MultiTenantMonitor *monitor, time_t queryTime);
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);
@ -709,7 +708,10 @@ 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
{
@ -717,32 +719,6 @@ 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)