coral

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Implement CoralRelNodeToCoralSqlNodeTransformer for lateral views

3

Adding a transformer class to convert the intermediate Coral RelNode representation to Coral SqlNode representation for lateral views. Ideally, this transformer should be in the coral-common module. However, the transformer...

aastha25

Can Presto SQL be converted to Hive SQL

1

Can Presto SQL be converted to Hive SQL？

GoodGoodQ


981433814

 Why is the character string transformed into Unicode encoding And the converted Unicode encoding starts with 'u&'

zehuiHuang


zehuiHuang

IntelliJ IDEA not recognize coral-trino-parser libraries

3

I just clone coral and run ./gradlew build in the root path，then import IDEA，but IDEA can‘t find source class code like "coral.shade...." , IDEA version is 2020.01 . I found...

hqbhoho

Failed to recognize predicate 'ARRAY'. Failed rule: 'identifier' in table or column identifier

3

I am having a problem with sql translation to Trino that results in a query with an identifier column. ``` SELECT numbers , animal , n , a FROM (...

jixuekang

Currently during hive -> spark/trino Sql translations, coral creates a relNode plan. The tableScan relNode has a representation: LogicalTableScan(table=[[hive, dbName, tableName]]). When this relNode is translated to a SqlNode, "hive"...

aastha25

This PR is for #235. `DaliOperatorTable` registers legal operators for Calcite to validate and convert the input SqlNode. Given we convert other types of operators (like Trino operators) to Hive...

ljfgem

Coral transform hive function “regexp_extract” to trino by introduce a new function "hive_pattern_to_trino"

1

Coral transform the following hive sql to trino ```shell select regexp_extract('1a 2b 14m', '\d+', 1); ``` result: ```shell select regexp_extract('1a 2b 14m', "hive_pattern_to_presto"('\d+'), 1); ``` But trino not have the...

gjhkael