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Apache Calcite Avatica

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This resurrects https://github.com/apache/calcite-avatica/pull/49, updating @kminder 's existing work per guidance from [CALCITE-2322](https://issues.apache.org/jira/browse/CALCITE-2322?focusedCommentId=17370941&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17370941). The purpose of this change is to add support for configurable "fetch size"/ "fetch row count". Currently, setting...

NullPointerException when send ExectuteRequest via protobuf with no parameters

`Driver.java` fails to pass the parameters passed via connection URL to the `OpenConnectionRequest`. This PR introduces changes which extract the context properties, and pass it to the `OpenConnectionRequest` call. Fixes:...

Add an ability to plug in custom limiting of ResultSet frame sizes by overriding a method of JdbcMeta. The intention is to allow limiting the size of a ResultSet frame...

…by handling all exceptions thrown by JdbcResultSet#extractUsingResultSet() Also fixed a type-conversion issue for Floats in TypedValue#getSerialFromProto() (line 802) See JIRA issue CALCITE-3162 for more details.

Fix [ISSUE #3078](https://issues.apache.org/jira/browse/CALCITE-3078) The code of lastDay appears in calcite ```java private static int lastDay(int y, int m) { switch (m) { case 2: return y % 4 == 0...

Calcite support sql function UNIX_TIMESTAMP and FROM_UNIXTIME, BuiltInMethod.java info like : ```java UNIX_TIMESTAMP(DateTimeUtils.class, "unixTimestamp") FROM_UNIXTIME(DateTimeUtils.class, "fromUnixTimestamp", long.class, TimeZone.class) ```