Thread: pgsql-server/contrib/intarray README.intarray ...
pgsql-server/contrib/intarray README.intarray ...
From
momjian@postgresql.org (Bruce Momjian - CVS)
Date:
CVSROOT: /cvsroot Module name: pgsql-server Changes by: momjian@postgresql.org 02/08/10 16:38:29 Modified files: contrib/intarray: README.intarray _int.c _int.sql.in contrib/intarray/expected: _int.out contrib/intarray/sql: _int.sql Log message: August 6, 2002 1. Reworked patch from Andrey Oktyabrski (ano@spider.ru) with functions: icount, sort, sort_asc, uniq, idx, subarray operations: #, +, -, |, & FUNCTIONS: int icount(int[]) - the number of elements in intarray int[] sort(int[], 'asc' | 'desc') - sort intarray int[] sort(int[]) - sort in ascending order int[] sort_asc(int[]),sort_desc(int[]) - shortcuts for sort int[] uniq(int[]) - returns unique elements int idx(int[], int item) - returns index of first intarray matching element to item, or '0' if matching failed. int[] subarray(int[],int START [, int LEN]) - returns part of intarray starting from element number START (from 1) and length LEN. OPERATIONS: int[] && int[] - overlap - returns TRUE if arrays has at least one common elements. int[] @ int[] - contains - returns TRUE if left array contains right array int[] ~ int[] - contained - returns TRUE if left array is contained in right array # int[] - return the number of elements in array int[] + int - push element to array ( add to end of array) int[] + int[] - merge of arrays (right array added to the end of left one) int[] - int - remove entries matched by right argument from array int[] - int[] - remove left array from right int[] | int - returns intarray - union of arguments int[] | int[] - returns intarray as a union of two arrays int[] & int[] - returns intersection of arrays Oleg Bartunov