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(PHP 5 >= 5.3.3)
PDO::pgsqlCopyToFile — Copy data from table into file
$table_name
, string $filename
[, string $delimiter = '\t'
[, string $null_as = "\\\\N"
[, string $fields
]]] )
Copies data from table into file specified by filename
using delimiter as fields delimiter and fields list
table_name String containing table name
filename Filename to export data
delimiter
Delimiter used in file specified by filename
null_as How to interpret null values
fields List of fields to insert
Returns TRUE on success, 或者在失败时返回 FALSE .