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 update_statistics_statement 

<update_statistics_statement> ::=
  UPDATE STAT[ISTICS] COLUMN <
table_name>.<column_name>
    [ESTIMATE [<
sample_definition>]]
| UPDATE STAT[ISTICS] COLUMN (<column_name>,...) FOR <table_name>
    [ESTIMATE [<sample_definition>]]
| UPDATE STAT[ISTICS] COLUMN (*) FOR <table_name>
    [ESTIMATE [<sample_definition>]]
| UPDATE STAT[ISTICS] <table_name> [ESTIMATE [<sample_definition>]]
| UPDATE STAT[ISTICS] [<
owner>.][<identifier>]* [ESTIMATE [<sample_definition>]]

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