Repository: carbondata Updated Branches: refs/heads/master b23d357ec -> 69c634c5f
[CARBONDATA-1219] Documentation - not supported high.cardinality.row.count.percentage This closes #1170 Project: http://git-wip-us.apache.org/repos/asf/carbondata/repo Commit: http://git-wip-us.apache.org/repos/asf/carbondata/commit/69c634c5 Tree: http://git-wip-us.apache.org/repos/asf/carbondata/tree/69c634c5 Diff: http://git-wip-us.apache.org/repos/asf/carbondata/diff/69c634c5 Branch: refs/heads/master Commit: 69c634c5f32dfc333919d0b3e6cc342e15638cf7 Parents: b23d357 Author: srigopalmohanty <srigopalmoha...@gmail.com> Authored: Thu Jul 13 15:15:26 2017 +0530 Committer: chenliang613 <chenliang...@apache.org> Committed: Wed Jul 19 14:37:22 2017 +0800 ---------------------------------------------------------------------- docs/configuration-parameters.md | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/carbondata/blob/69c634c5/docs/configuration-parameters.md ---------------------------------------------------------------------- diff --git a/docs/configuration-parameters.md b/docs/configuration-parameters.md index 19f3f1a..c85a522 100644 --- a/docs/configuration-parameters.md +++ b/docs/configuration-parameters.md @@ -131,9 +131,8 @@ This section provides the details of all the configurations required for CarbonD | Parameter | Default Value | Description | |---------------------------------------|---------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| -| high.cardinality.identify.enable | true | If the parameter is true, the high cardinality columns of the dictionary code are automatically recognized and these columns will not be used as global dictionary encoding. If the parameter is false, all dictionary encoding columns are used as dictionary encoding. The high cardinality column must meet the following requirements: value of cardinality > configured value of high.cardinality. Equally, the value of cardinality is higher than the threshold.value of cardinality/ row number x 100 > configured value of high.cardinality.row.count.percentage. Equally, the ratio of the cardinality value to data row number is higher than the configured percentage. Note: If SINGLE_PASS is used during data load, then this property will be disabled.| +| high.cardinality.identify.enable | true | If the parameter is true, the high cardinality columns of the dictionary code are automatically recognized and these columns will not be used as global dictionary encoding. If the parameter is false, all dictionary encoding columns are used as dictionary encoding. The high cardinality column must meet the following requirements: value of cardinality > configured value of high.cardinality. <b> Note: </b> If SINGLE_PASS is used during data load, then this property will be disabled.| | high.cardinality.threshold | 1000000 | It is a threshold to identify high cardinality of the columns.If the value of columns' cardinality > the configured value, then the columns are excluded from dictionary encoding. | -| high.cardinality.row.count.percentage | 80 | Percentage to identify whether column cardinality is more than configured percent of total row count.Configuration value formula:Value of cardinality/ row number x 100 > configured value of high.cardinality.row.count.percentage. The value of the parameter must be larger than 0. | | carbon.cutOffTimestamp | 1970-01-01 05:30:00 | Sets the start date for calculating the timestamp. Java counts the number of milliseconds from start of "1970-01-01 00:00:00". This property is used to customize the start of position. For example "2000-01-01 00:00:00". The date must be in the form "carbon.timestamp.format". NOTE: The CarbonData supports data store up to 68 years from the cut-off time defined. For example, if the cut-off time is 1970-01-01 05:30:00, then the data can be stored up to 2038-01-01 05:30:00. | | carbon.timegranularity | SECOND | The property used to set the data granularity level DAY, HOUR, MINUTE, or SECOND. |
