feat: support locate(substr, str[, pos]) function(#820)

[howdb]

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...) feature

• What is the current behavior? (You can also link to an open issue here) Fixed #820

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SDK Test Report

102 files  ±0  102 suites  ±0   2m 16s :stopwatch: -15s 359 tests ±0  345 :white_check_mark: ±0  14 :zzz: ±0  0 :x: ±0  487 runs  ±0  473 :white_check_mark: ±0  14 :zzz: ±0  0 :x: ±0 

Results for commit d5de1168. ± Comparison against base commit 59d79f6d.

This pull request removes 30 and adds 9 tests. Note that renamed tests count towards both.

``` PARTITION BY db1.t1.col2 ORDER BY db1.t1.col1 PARTITION BY t1.col2 ORDER BY t1.col1 ROWS_RANGE BETWEEN 3 PRECEDING AND CURRENT ROW ) limit 10;](1) ) limit 10;](2) ) limit 10;](3) FROM db1.t1 FROM t1 WINDOW w1 AS ( last join db2.t2 order by db2.t2.col1 … ``` ``` com._4paradigm.hybridse.sdk.SqlEngineTest ‑ sqlLastJoinWithMultipleDB[, SELECT sum(db1.t1.col1) over w1 as sum_t1_col1, db2.t2.str1 as t2_str1 FROM db1.t1 last join db2.t2 order by db2.t2.col1 on db1.t1.col1 = db2.t2.col1 and db1.t1.col2 = db2.t2.col0 WINDOW w1 AS ( PARTITION BY db1.t1.col2 ORDER BY db1.t1.col1 ROWS_RANGE BETWEEN 3 PRECEDING AND CURRENT ROW ) limit 10;](2) com._4paradigm.hybridse.sdk.SqlEngineTest ‑ sqlLastJoinWithMultipleDB[db1, SELECT sum(t1.col1) over w1 as sum_t1_col1, db2.t2.str1 as t2_str1 FROM t1 last join db2.t2 order by db2.t2.col1 on t1.col1 = db2.t2.col1 and t1.col2 = db2.t2.col0 WINDOW w1 AS ( PARTITION BY t1.col2 ORDER BY t1.col1 ROWS_RANGE BETWEEN 3 PRECEDING AND CURRENT ROW ) limit 10;](1) com._4paradigm.hybridse.sdk.SqlEngineTest ‑ sqlLastJoinWithMultipleDB[null, SELECT sum(db1.t1.col1) over w1 as sum_t1_col1, db2.t2.str1 as t2_str1 FROM db1.t1 last join db2.t2 order by db2.t2.col1 on db1.t1.col1 = db2.t2.col1 and db1.t1.col2 = db2.t2.col0 WINDOW w1 AS ( PARTITION BY db1.t1.col2 ORDER BY db1.t1.col1 ROWS_RANGE BETWEEN 3 PRECEDING AND CURRENT ROW ) limit 10;](3) com._4paradigm.hybridse.sdk.SqlEngineTest ‑ sqlMultipleDBErrorTest[, SELECT db2.t2.str1 as t2_str1 FROM t1 last join db2.t2 order by db2.t2.col1 on t1.col1 = db2.t2.col1 and t1.col2 = db2.t2.col0; , SQL parse error: Fail to transform data provider op: table t1 not exists in database []](4) com._4paradigm.hybridse.sdk.SqlEngineTest ‑ sqlMultipleDBErrorTest[db1, SELECT db1.t2.str1 as t2_str1 FROM t1 last join db2.t2 order by db2.t2.col1 on t1.col1 = db2.t2.col1 and t1.col2 = db2.t2.col0; , SQL parse error: Column Not found: db1.t2.str1](2) com._4paradigm.hybridse.sdk.SqlEngineTest ‑ sqlMultipleDBErrorTest[db1, SELECT db2.t2.str1 as t2_str1 FROM t1 last join db2.t2 order by db2.t2.col1 on t1.col1 = t2.col1 and t1.col2 = db2.t2.col0; , SQL parse error: Column Not found: .t2.col1](3) com._4paradigm.hybridse.sdk.SqlEngineTest ‑ sqlMultipleDBErrorTest[db1, SELECT t2.str1 as t2_str1 FROM t1 last join db2.t2 order by db2.t2.col1 on t1.col1 = db2.t2.col1 and t1.col2 = db2.t2.col0; , SQL parse error: Column Not found: .t2.str1](1) com._4paradigm.hybridse.sdk.SqlEngineTest ‑ sqlMultipleDBErrorTest[null, SELECT db2.t2.str1 as t2_str1 FROM t1 last join db2.t2 order by db2.t2.col1 on t1.col1 = db2.t2.col1 and t1.col2 = db2.t2.col0; , SQL parse error: Fail to transform data provider op: table t1 not exists in database []](5) com._4paradigm.hybridse.sdk.SqlEngineTest ‑ sqlWindowLastJoin[ SELECT sum(t1.col1) over w1 as sum_t1_col1, t2.str1 as t2_str1 FROM t1 last join t2 order by t2.col1 on t1.col1 = t2.col1 and t1.col2 = t2.col0 WINDOW w1 AS ( PARTITION BY t1.col2 ORDER BY t1.col1 ROWS_RANGE BETWEEN 3 PRECEDING AND CURRENT ROW ) limit 10;](1) ```

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Codecov Report

Attention: Patch coverage is 97.82609% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 75.24%. Comparing base (59d79f6) to head (d5de116).

Files	Patch %	Lines
hybridse/src/udf/udf.cc	95.23%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #3943 +/- ## ============================================ + Coverage 75.22% 75.24% +0.02% Complexity 711 711 ============================================ Files 754 754 Lines 135575 135618 +43 Branches 2072 2072 ============================================ + Hits 101991 102051 +60 + Misses 33281 33264 -17 Partials 303 303 ```

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HybridSE Mac Test Report

0 tests  ±0   0 :white_check_mark: ±0   0s :stopwatch: ±0s 0 suites ±0   0 :zzz: ±0  0 files   ±0   0 :x: ±0 

Results for commit d5de1168. ± Comparison against base commit 59d79f6d.

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HybridSE Linux Test Report

20 377 tests  +2   20 375 :white_check_mark: +2   6m 14s :stopwatch: -9s    262 suites ±0        2 :zzz: ±0      69 files   ±0        0 :x: ±0 

Results for commit d5de1168. ± Comparison against base commit 59d79f6d.

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Linux Test Report

    59 files  ±0     252 suites  ±0   1h 41m 52s :stopwatch: + 1m 36s 13 520 tests ±0  13 513 :white_check_mark: ±0  7 :zzz: ±0  0 :x: ±0  19 197 runs  ±0  19 190 :white_check_mark: ±0  7 :zzz: ±0  0 :x: ±0 

Results for commit d5de1168. ± Comparison against base commit 59d79f6d.