Hi,
from the limits page in the docs:
https://www.postgresql.org/docs/current/limits.html
"...but a tuple of 1600 bigint columns would consume 12800 bytes and would
therefore not fit inside a heap page".
Creating a table with 1600 bigint columns does work with a 8k blocksize:
$ cat gen_tab.sh
#!/bin/bash
AMOUNT_OF_COLS=$1
DATA_TYPE=$2
STATEMENT="create table t ( "
for (( i=1 ; i<${AMOUNT_OF_COLS} ; i++ ));
do
STATEMENT+=" col${i} ${DATA_TYPE},"
done
STATEMENT+="col${AMOUNT_OF_COLS} ${DATA_TYPE} );"
echo ${STATEMENT}
.$ /gen_tab.sh 1600 bigint > a.sql
$ psql -f a.sql
CREATE TABLE
$ psql -c "\d t"
...
col1598 | bigint | | |
col1599 | bigint | | |
col1600 | bigint | | |
Am I missing something?
Regards
Daniel
