Symptoms:
Disk is getting filed up by pgsql_tmp file rapidly
DB size is increasing and lot of temporary file are present in <NCM>/db/controldb/data/base/ directory
-rw------- 1 pgdba pgdba 1073741824 Sep 16 04:10 pgsql_tmp12722.2215
-rw------- 1 pgdba pgdba 1073741824 Sep 16 04:11 pgsql_tmp12722.2216
-rw------- 1 pgdba pgdba 1073741824 Sep 16 04:13 pgsql_tmp12722.2217
-rw------- 1 pgdba pgdba 1073741824 Sep 16 04:14 pgsql_tmp12722.2218
-rw------- 1 pgdba pgdba 1073741824 Sep 16 04:15 pgsql_tmp12722.2219
-rw------- 1 pgdba pgdba 1073741824 Sep 16 04:17 pgsql_tmp12722.2220
-rw------- 1 pgdba pgdba 1073741824 Sep 16 04:18 pgsql_tmp12722.2221
-rw------- 1 pgdba pgdba 1073741824 Sep 16 04:19 pgsql_tmp12722.2222
-rw------- 1 pgdba pgdba 1073741824 Sep 16 04:20 pgsql_tmp12722.2223
-rw------- 1 pgdba pgdba 1073741824 Sep 16 04:21 pgsql_tmp12722.2224
-rw------- 1 pgdba pgdba 1073741824 Sep 16 04:22 pgsql_tmp12722.2225
-rw------- 1 pgdba pgdba 1073741824 Sep 16 04:23 pgsql_tmp12722.2226