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Stats not reflected in System tables — Vertica Forum

Stats not reflected in System tables

esangrameesangrame ✭
in General Discussion

Hi ,

I'm collecting statistics on the column and the whole table, but it is not reflected in the projections and projection_columns table.

Tried executing analyze_statistics with 100%, but still couldn't see it in system tables.

Please let me know if I'm missing anything.

Comments

  • esangrameesangrame ✭

    Got the answer, it is because the table was full refreshed after the stats was collected. So a table with 0 columns won't collect any stats.
    I hope my assumption is correct.

  • emorenoemoreno Employee

    Yes, your assumption is correct, no data, no statistics.

  • esangrameesangrame ✭

    Thank you.
    One more doubt. I have collected stats on the tables and columns with which I join the two tables.
    But in the explain plan it shows NO STATISTICS.

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