[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-19 Thread Namit Jain (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Namit Jain updated HIVE-2068:
-

  Resolution: Fixed
Hadoop Flags: [Reviewed]
  Status: Resolved  (was: Patch Available)

Committed. Thanks Siying

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch, 
 HIVE-2068.4.patch, HIVE-2068.5.patch, HIVE-2068.6.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-18 Thread Siying Dong (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Siying Dong updated HIVE-2068:
--

Attachment: HIVE-2068.6.patch

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch, 
 HIVE-2068.4.patch, HIVE-2068.5.patch, HIVE-2068.6.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-18 Thread Siying Dong (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Siying Dong updated HIVE-2068:
--

Status: Patch Available  (was: Open)

looks like simple ... limit ... depends on the sequence of list files, which 
is not deterministic. I modify the test case to always put the 3 same files so 
that the results will be deterministic.

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch, 
 HIVE-2068.4.patch, HIVE-2068.5.patch, HIVE-2068.6.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-17 Thread Namit Jain (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Namit Jain updated HIVE-2068:
-

Status: Open  (was: Patch Available)

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch, 
 HIVE-2068.4.patch, HIVE-2068.5.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-15 Thread Namit Jain (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Namit Jain updated HIVE-2068:
-

Status: Open  (was: Patch Available)

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch, 
 HIVE-2068.4.patch, HIVE-2068.5.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-15 Thread Siying Dong (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Siying Dong updated HIVE-2068:
--

Attachment: HIVE-2068.6.patch

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch, 
 HIVE-2068.4.patch, HIVE-2068.5.patch, HIVE-2068.6.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-15 Thread Siying Dong (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Siying Dong updated HIVE-2068:
--

Status: Patch Available  (was: Open)

fix the issue. I think what Namit means is that the function should always 
return true(no more rows).

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch, 
 HIVE-2068.4.patch, HIVE-2068.5.patch, HIVE-2068.6.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-15 Thread Siying Dong (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Siying Dong updated HIVE-2068:
--

Status: Open  (was: Patch Available)

found some problem with last modified piece of codes.

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch, 
 HIVE-2068.4.patch, HIVE-2068.5.patch, HIVE-2068.6.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-15 Thread Siying Dong (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Siying Dong updated HIVE-2068:
--

Attachment: (was: HIVE-2068.6.patch)

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch, 
 HIVE-2068.4.patch, HIVE-2068.5.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-15 Thread Siying Dong (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Siying Dong updated HIVE-2068:
--

Status: Patch Available  (was: Open)

deleted the latest patch. The fetchTask return part is actually OK.

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch, 
 HIVE-2068.4.patch, HIVE-2068.5.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-11 Thread Siying Dong (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Siying Dong updated HIVE-2068:
--

Attachment: HIVE-2068.5.patch

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch, 
 HIVE-2068.4.patch, HIVE-2068.5.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-11 Thread Siying Dong (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Siying Dong updated HIVE-2068:
--

Status: Patch Available  (was: Open)

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch, 
 HIVE-2068.4.patch, HIVE-2068.5.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-09 Thread Namit Jain (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Namit Jain updated HIVE-2068:
-

Status: Open  (was: Patch Available)

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch, 
 HIVE-2068.4.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-05 Thread Namit Jain (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Namit Jain updated HIVE-2068:
-

Status: Open  (was: Patch Available)

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-05 Thread Siying Dong (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Siying Dong updated HIVE-2068:
--

Status: Patch Available  (was: Open)

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch, 
 HIVE-2068.4.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-05 Thread Siying Dong (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Siying Dong updated HIVE-2068:
--

Attachment: HIVE-2068.4.patch

addressing Namit's comments.

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch, 
 HIVE-2068.4.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-04-04 Thread Namit Jain (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Namit Jain updated HIVE-2068:
-

Status: Patch Available  (was: Open)

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch, HIVE-2068.3.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-03-30 Thread Siying Dong (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Siying Dong updated HIVE-2068:
--

Status: Patch Available  (was: Open)

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-03-30 Thread Siying Dong (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Siying Dong updated HIVE-2068:
--

Attachment: HIVE-2068.2.patch

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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[jira] [Updated] (HIVE-2068) Speed up query select xx,xx from xxx LIMIT xxx if no filtering or aggregation

2011-03-30 Thread Namit Jain (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Namit Jain updated HIVE-2068:
-

Status: Open  (was: Patch Available)

 Speed up query select xx,xx from xxx LIMIT xxx if no filtering or 
 aggregation
 ---

 Key: HIVE-2068
 URL: https://issues.apache.org/jira/browse/HIVE-2068
 Project: Hive
  Issue Type: Improvement
Reporter: Siying Dong
Assignee: Siying Dong
 Attachments: HIVE-2068.1.patch, HIVE-2068.2.patch


 Currently, select xx,xx from xxx where ...(only partition conditions) LIMIT 
 xxx will start a MapReduce job with input to be the whole table or 
 partition. The latency can be huge if the table or partition is big. We could 
 reduce number of input files to speed up the queries.

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