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Tree: 179a7b446e

add-ec-vacuum

add-foundation-db

add_fasthttp_client

add_remote_storage

adding-message-queue-integration-tests

avoid_releasing_temp_file_on_write

changing-to-zap

collect-public-metrics

create-table-snapshot-api-design

data_query_pushdown

dependabot/maven/other/java/client/com.google.protobuf-protobuf-java-3.25.5

dependabot/maven/other/java/examples/org.apache.hadoop-hadoop-common-3.4.0

detect-and-plan-ec-tasks

do-not-retry-if-error-is-NotFound

fasthttp

feature/mq-kafka-gateway-m1

filer1_maintenance_branch

fix-GetObjectLockConfigurationHandler

fix-versioning-listing-only

ftp

gh-pages

improve-fuse-mount

improve-fuse-mount2

logrus

master

message_send

mount2

mq-subscribe

mq2

original_weed_mount

random_access_file

refactor-needle-read-operations

refactor-volume-write

remote_overlay

revert-5134-patch-1

revert-5819-patch-1

revert-6434-bugfix-missing-s3-audit

s3-select

sub

tcp_read

test-reverting-lock-table

test_udp

testing

testing-sdx-generation

tikv

track-mount-e2e

volume_buffered_writes

worker-execute-ec-tasks

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dev

helm-3.65.1

v0.69

v0.70beta

v3.33

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seaweedfs/weed/query/engine

History

chrislu 179a7b446e feat: Add comprehensive string functions with extensive tests Implemented String Functions: - LENGTH: Get string length (supports all value types) - UPPER/LOWER: Case conversion - TRIM/LTRIM/RTRIM: Whitespace removal (space, tab, newline, carriage return) - SUBSTRING: Extract substring with optional length (SQL 1-based indexing) - CONCAT: Concatenate multiple values (supports mixed types, skips nulls) - REPLACE: Replace all occurrences of substring - POSITION: Find substring position (1-based, 0 if not found) - LEFT/RIGHT: Extract leftmost/rightmost characters - REVERSE: Reverse string with proper Unicode support Key Features: - Robust type conversion (string, int, float, bool, bytes) - Unicode-safe operations (proper rune handling in REVERSE) - SQL-compatible indexing (1-based for SUBSTRING, POSITION) - Comprehensive error handling with descriptive messages - Mixed-type support (e.g., CONCAT number with string) Helper Functions: - valueToString: Convert any schema_pb.Value to string - valueToInt64: Convert numeric values to int64 Comprehensive test suite with 25+ test cases covering: - All string functions with typical use cases - Type conversion scenarios (numbers, booleans) - Edge cases (empty strings, null values, Unicode) - Error conditions and boundary testing All tests passing ✅		1 month ago
..
aggregations.go	change to pg_query_go	1 month ago
broker_client.go	fix todo	1 month ago
catalog.go	handling errors	1 month ago
data_conversion.go	refactor	1 month ago
describe.go	no more mysql	1 month ago
engine.go	handling errors	1 month ago
engine_test.go	change to pg_query_go	1 month ago
errors.go	handling errors	1 month ago
hybrid_message_scanner.go	fix	1 month ago
hybrid_test.go	improve tests	1 month ago
mock_test.go	use mock for testing	1 month ago
mocks_test.go	fix todo	1 month ago
parquet_scanner.go	fix todo	1 month ago
query_parsing_test.go	fix	1 month ago
real_namespace_test.go	fix tests	1 month ago
schema_parsing_test.go	improve tests	1 month ago
select_test.go	improve tests	1 month ago
sql_functions.go	feat: Add comprehensive string functions with extensive tests	1 month ago
sql_functions_test.go	feat: Add comprehensive string functions with extensive tests	1 month ago
sql_parser_config.go	no more mysql	1 month ago
sql_types.go	change to pg_query_go	1 month ago
system_columns.go	fix after refactoring	1 month ago
test_noschema_error.go	fix todo	1 month ago
time_filter_test.go	fix	1 month ago
types.go	fix todo	1 month ago
window_functions_demo.go	feat: Add window function foundation with timestamp support	1 month ago