[
https://issues.apache.org/jira/browse/HIVE-8433?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sergey Shelukhin updated HIVE-8433:
-----------------------------------
Description:
{noformat}
SELECT
CAST(value AS BINARY),
value
FROM src
ORDER BY value
LIMIT 100
{noformat}
returns only one column.
Final CBO plan is
{noformat}
HiveSortRel(sort0=[$1], dir0=[ASC]): rowcount = 500.0, cumulative cost =
{24858.432393688767 rows, 500.0 cpu, 0.0 io}, id = 44
HiveProjectRel(value=[CAST($0):BINARY(2147483647) NOT NULL], value1=[$0]):
rowcount = 500.0, cumulative cost = {0.0 rows, 0.0 cpu, 0.0 io}, id = 42
HiveProjectRel(value=[$1]): rowcount = 500.0, cumulative cost = {0.0
rows, 0.0 cpu, 0.0 io}, id = 40
HiveTableScanRel(table=[[default.src]]): rowcount = 500.0, cumulative
cost = {0}, id = 0
{noformat}
but the resulting AST has only one column. Must be some bug in conversion,
probably related to the name collision in the schema, judging by the alias of
the column for the binary-cast value in the AST
{noformat}
TOK_QUERY
TOK_FROM
TOK_SUBQUERY
TOK_QUERY
TOK_FROM
TOK_TABREF
TOK_TABNAME
default
src
src
TOK_INSERT
TOK_DESTINATION
TOK_DIR
TOK_TMP_FILE
TOK_SELECT
TOK_SELEXPR
.
TOK_TABLE_OR_COL
src
value
value
$hdt$_0
TOK_INSERT
TOK_DESTINATION
TOK_DIR
TOK_TMP_FILE
TOK_SELECT
TOK_SELEXPR
TOK_FUNCTION
TOK_BINARY
.
TOK_TABLE_OR_COL
$hdt$_0
value
value
TOK_ORDERBY
TOK_TABSORTCOLNAMEASC
TOK_TABLE_OR_COL
value
TOK_LIMIT
100
{noformat}
was:
{noformat}
SELECT
CAST(value AS BINARY),
value
FROM src
ORDER BY value
LIMIT 100
{noformat}
returns only one column.
Final CBO plan is
{noformat}
HiveSortRel(sort0=[$1], dir0=[ASC]): rowcount = 500.0, cumulative cost =
{24858.432393688767 rows, 500.0 cpu, 0.0 io}, id = 44
HiveProjectRel(value=[CAST($0):BINARY(2147483647) NOT NULL], value1=[$0]):
rowcount = 500.0, cumulative cost = {0.0 rows, 0.0 cpu, 0.0 io}, id = 42
HiveProjectRel(value=[$1]): rowcount = 500.0, cumulative cost = {0.0
rows, 0.0 cpu, 0.0 io}, id = 40
HiveTableScanRel(table=[[default.src]]): rowcount = 500.0, cumulative
cost = {0}, id = 0
{noformat}
but the resulting AST has only one column. Must be some bug in converted,
probably related to the name collision in the schema, judging by the alias of
the column for the binary-cast value in the AST
{noformat}
TOK_QUERY
TOK_FROM
TOK_SUBQUERY
TOK_QUERY
TOK_FROM
TOK_TABREF
TOK_TABNAME
default
src
src
TOK_INSERT
TOK_DESTINATION
TOK_DIR
TOK_TMP_FILE
TOK_SELECT
TOK_SELEXPR
.
TOK_TABLE_OR_COL
src
value
value
$hdt$_0
TOK_INSERT
TOK_DESTINATION
TOK_DIR
TOK_TMP_FILE
TOK_SELECT
TOK_SELEXPR
TOK_FUNCTION
TOK_BINARY
.
TOK_TABLE_OR_COL
$hdt$_0
value
value
TOK_ORDERBY
TOK_TABSORTCOLNAMEASC
TOK_TABLE_OR_COL
value
TOK_LIMIT
100
{noformat}
> CBO loses a column during AST conversion
> ----------------------------------------
>
> Key: HIVE-8433
> URL: https://issues.apache.org/jira/browse/HIVE-8433
> Project: Hive
> Issue Type: Bug
> Components: CBO
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Priority: Critical
>
> {noformat}
> SELECT
> CAST(value AS BINARY),
> value
> FROM src
> ORDER BY value
> LIMIT 100
> {noformat}
> returns only one column.
> Final CBO plan is
> {noformat}
> HiveSortRel(sort0=[$1], dir0=[ASC]): rowcount = 500.0, cumulative cost =
> {24858.432393688767 rows, 500.0 cpu, 0.0 io}, id = 44
> HiveProjectRel(value=[CAST($0):BINARY(2147483647) NOT NULL],
> value1=[$0]): rowcount = 500.0, cumulative cost = {0.0 rows, 0.0 cpu, 0.0
> io}, id = 42
> HiveProjectRel(value=[$1]): rowcount = 500.0, cumulative cost = {0.0
> rows, 0.0 cpu, 0.0 io}, id = 40
> HiveTableScanRel(table=[[default.src]]): rowcount = 500.0, cumulative
> cost = {0}, id = 0
> {noformat}
> but the resulting AST has only one column. Must be some bug in conversion,
> probably related to the name collision in the schema, judging by the alias of
> the column for the binary-cast value in the AST
> {noformat}
> TOK_QUERY
> TOK_FROM
> TOK_SUBQUERY
> TOK_QUERY
> TOK_FROM
> TOK_TABREF
> TOK_TABNAME
> default
> src
> src
> TOK_INSERT
> TOK_DESTINATION
> TOK_DIR
> TOK_TMP_FILE
> TOK_SELECT
> TOK_SELEXPR
> .
> TOK_TABLE_OR_COL
> src
> value
> value
> $hdt$_0
> TOK_INSERT
> TOK_DESTINATION
> TOK_DIR
> TOK_TMP_FILE
> TOK_SELECT
> TOK_SELEXPR
> TOK_FUNCTION
> TOK_BINARY
> .
> TOK_TABLE_OR_COL
> $hdt$_0
> value
> value
> TOK_ORDERBY
> TOK_TABSORTCOLNAMEASC
> TOK_TABLE_OR_COL
> value
> TOK_LIMIT
> 100
> {noformat}
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