copy 5.3000000000e+01 to bigint column error while Insert ok

[Jov <amutu@xxxxxxxxx>]

when use insert command,we can insert 5.3000000000e+01 to table,but when use copy command,we get this:

ERROR:  invalid input syntax for integer: "'5.3000000000e+01'"

CONTEXT:  COPY tdsort_metrics, line 1, column monitor_value: "'5.3000000000e+01'"

any idea?

Jov

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