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Diffstat (limited to 'docs/sql-programming-guide.md')
| -rw-r--r-- | docs/sql-programming-guide.md | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/docs/sql-programming-guide.md b/docs/sql-programming-guide.md index 332618edf0..03500867df 100644 --- a/docs/sql-programming-guide.md +++ b/docs/sql-programming-guide.md @@ -1371,7 +1371,10 @@ the Data Sources API. The following options are supported: <td> These options must all be specified if any of them is specified. They describe how to partition the table when reading in parallel from multiple workers. - <code>partitionColumn</code> must be a numeric column from the table in question. + <code>partitionColumn</code> must be a numeric column from the table in question. Notice + that <code>lowerBound</code> and <code>upperBound</code> are just used to decide the + partition stride, not for filtering the rows in table. So all rows in the table will be + partitioned and returned. </td> </tr> </table> |