Add example of catalog API usage (#5291) #5326
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alamb
approved these changes
Feb 18, 2023
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I ran cargo run --example catalog
querying table delta_binary_packed.parquet from parquet schema
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+---------------------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+-------------+-------------+-------------+-------------+--------------+--------------+--------------+---------------+---------------+---------------+----------------+----------------+----------------+----------------+-----------------+-----------------+-----------------+------------------+------------------+------------------+-------------------+-------------------+-------------------+-------------------+--------------------+--------------------+--------------------+---------------------+---------------------+---------------------+----------------------+----------------------+----------------------+----------------------+-------------+
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+---------------------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+-------------+-------------+-------------+-------------+--------------+--------------+--------------+---------------+---------------+---------------+----------------+----------------+----------------+----------------+-----------------+-----------------+-----------------+------------------+------------------+------------------+-------------------+-------------------+-------------------+-------------------+--------------------+--------------------+--------------------+---------------------+---------------------+---------------------+----------------------+----------------------+----------------------+----------------------+-------------+
querying table alltypes_plain.parquet from parquet schema
+----+----------+-------------+--------------+---------+------------+-----------+------------+------------------+------------+---------------------+
| id | bool_col | tinyint_col | smallint_col | int_col | bigint_col | float_col | double_col | date_string_col | string_col | timestamp_col |
+----+----------+-------------+--------------+---------+------------+-----------+------------+------------------+------------+---------------------+
| 4 | true | 0 | 0 | 0 | 0 | 0 | 0 | 30332f30312f3039 | 30 | 2009-03-01T00:00:00 |
| 5 | false | 1 | 1 | 1 | 10 | 1.1 | 10.1 | 30332f30312f3039 | 31 | 2009-03-01T00:01:00 |
| 6 | true | 0 | 0 | 0 | 0 | 0 | 0 | 30342f30312f3039 | 30 | 2009-04-01T00:00:00 |
| 7 | false | 1 | 1 | 1 | 10 | 1.1 | 10.1 | 30342f30312f3039 | 31 | 2009-04-01T00:01:00 |
| 2 | true | 0 | 0 | 0 | 0 | 0 | 0 | 30322f30312f3039 | 30 | 2009-02-01T00:00:00 |
+----+----------+-------------+--------------+---------+------------+-----------+------------+------------------+------------+---------------------+
querying table null_list.parquet from parquet schema
+-----------+
| emptylist |
+-----------+
| [] |
+-----------+
querying table binary.parquet from parquet schema
+-----+
| foo |
+-----+
| 00 |
| 01 |
| 02 |
| 03 |
| 04 |
+-----+
querying table fixed_length_decimal.parquet from parquet schema
+-------+
| value |
+-------+
| 1.00 |
| 2.00 |
| 3.00 |
| 4.00 |
| 5.00 |
+-------+
dropping table delta_binary_packed.parquet
Compilation finished at Sat Feb 18 11:26:43
👍 looks very nice
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The CI failure seems unrelated to this PR so merging this one in. THanks @jaylmiller https://github.com/apache/arrow-datafusion/actions/runs/4212165207/jobs/7311048020 |
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Benchmark runs are scheduled for baseline = a7a824a and contender = 5ffa8d7. 5ffa8d7 is a master commit associated with this PR. Results will be available as each benchmark for each run completes. |
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Which issue does this PR close?
#5291 (does not close)
Rationale for this change
A simple example can help users figure out how to use DataFusion's catalog API.
What changes are included in this PR?
Just the example.
Are these changes tested?
n/a
Are there any user-facing changes?
n/a