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https://issues.apache.org/jira/browse/IGNITE-10585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16712310#comment-16712310
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Ray commented on IGNITE-10585:
------------------------------
[~vozerov]
According to [https://apacheignite-sql.readme.io/docs/data-types#section-real,]
java.lang.Float should be cast to REAL in SQL.
I provided a fix, please review and comment.
> JDBC driver returns FLOAT in column metadata for REAL SQL type
> --------------------------------------------------------------
>
> Key: IGNITE-10585
> URL: https://issues.apache.org/jira/browse/IGNITE-10585
> Project: Ignite
> Issue Type: Bug
> Components: jdbc
> Affects Versions: 2.7
> Reporter: Ray
> Assignee: Ray
> Priority: Major
> Fix For: 2.8
>
>
> When I create a table using
> create table c(a varchar, b real, primary key(a));
> The meta information for column b is wrong when I use !desc c to check.
> 0: jdbc:ignite:thin://127.0.0.1/> !desc c
> TABLE_CAT
> TABLE_SCHEM PUBLIC
> TABLE_NAME C
> COLUMN_NAME A
> DATA_TYPE 12
> TYPE_NAME VARCHAR
> COLUMN_SIZE null
> BUFFER_LENGTH null
> DECIMAL_DIGITS null
> NUM_PREC_RADIX 10
> NULLABLE 1
> REMARKS
> COLUMN_DEF
> SQL_DATA_TYPE 12
> SQL_DATETIME_SUB null
> CHAR_OCTET_LENGTH 2147483647
> ORDINAL_POSITION 1
> IS_NULLABLE YES
> SCOPE_CATLOG
> SCOPE_SCHEMA
> SCOPE_TABLE
> SOURCE_DATA_TYPE null
> IS_AUTOINCREMENT NO
> IS_GENERATEDCOLUMN NO
> TABLE_CAT
> TABLE_SCHEM PUBLIC
> TABLE_NAME C
> COLUMN_NAME B
> DATA_TYPE 7
> {color:#d04437}TYPE_NAME FLOAT{color}
> COLUMN_SIZE null
> BUFFER_LENGTH null
> DECIMAL_DIGITS null
> NUM_PREC_RADIX 10
> NULLABLE 1
> REMARKS
> COLUMN_DEF
> SQL_DATA_TYPE 8
> SQL_DATETIME_SUB null
> CHAR_OCTET_LENGTH 2147483647
> ORDINAL_POSITION 2
> IS_NULLABLE YES
> SCOPE_CATLOG
> SCOPE_SCHEMA
> SCOPE_TABLE
> SOURCE_DATA_TYPE null
> IS_AUTOINCREMENT NO
> IS_GENERATEDCOLUMN NO
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