Analytic Function Bug - Mailing list pgsql-general

with

d(logical_partition_key, model_usage) as ( values( 'TEST_DATA' ,'F(T61)(EXPORT)' )

)

,

usg_txt as (

SELECT DISTINCT logical_partition_key,

MODEL_USAGE as usage_text,

REPLACE ( REPLACE ( REPLACE ( REPLACE ( PIU.MODEL_USAGE::text, '<t context="USAGE_TEXT">', ''), '<t context="FCN_NAME_MODFR">', ''), '<t context="FCN_USAGE_MODFR">', ''), '</t>', '') AS txt

FROM d /*CAO_CALLOUT_GHOST_COMB_W*/ piu

)

,

parse( logical_partition_key, usage_text,txt, rpo_txt, indx ) as

(

select d.logical_partition_key, d.usage_text,d.txt, coalesce(a.rpo[1],a.rpo[2]) as rpo_txt, a.pos

from usg_txt d

left join lateral regexp_matches( txt, '([ ,\-()/&])|([^ ,\-()/&]+)','g') with ordinality as a(rpo,pos) on true

)

,

prv_nxt_token( logical_partition_key, usage_text,txt, rpo_txt, indx, mx_indx, prev,nxt,nxt2, prv2,prv3) as

(

/* Get prior and next token to support later logic */

select p.logical_partition_key, p.usage_text,

p.txt, p.rpo_txt, indx,

max( indx) over ( partition by p.txt ) mx_indx,

lag( p.rpo_txt,1 ) over ( partition by p.logical_partition_key,p.txt order by indx ) prev,

lag( p.rpo_txt,-1 ) over ( partition by p.logical_partition_key,p.txt order by indx ) nxt,

lag( p.rpo_txt,-2) over ( partition by p.logical_partition_key,p.txt order by indx ) nxt2,

lag( p.rpo_txt,2 ) over ( partition by p.logical_partition_key,p.txt order by indx ) prv2,

lag( p.rpo_txt,3 ) over ( partition by p.logical_partition_key,p.txt order by indx ) prv3

from parse p

)

select * from prv_nxt_token;