docs: moves embedded mode description to SpringQL-client-c

SpringQL · Nov 22, 2021 · 7a725e8 · 7a725e8
1 parent 92dffb7
commit 7a725e8
Showing 1 changed file with 2 additions and 100 deletions.
diff --git a/README.md b/README.md
@@ -138,108 +138,10 @@ $ tail -f fst_trade_oracle.log
 
 Client libraries for the following languages are currently available:
 
-- [Rust](/SpringQL/SpringQL-client-rs)
 - [C](/SpringQL/SpringQL-client-c)
 
-This section describes how to use SpringQL in embedded mode from C.
-
-#### Installation
-
-**TODO** curl `libspringql.so` from GitHub releases in SpringQL-client-C repo?
-
-#### Writing and building sample application
-
-```c
-// springql-embedded.c
-
-#include <springql.h>
-#include <assert.h>
-
-void setup_pipeline(spring_pipeline *pipeline) {
-  spring_stmt *stmt = spring_prepare(
-    "CREATE STREAM \"st_trade_oracle\" ("
-    "  \"timestamp\" TIMESTAMP NOT NULL ROWTIME,"
-    "  \"ticker\" TEXT NOT NULL,"
-    "  \"amount\" INTEGER NOT NULL"
-    ");"
-  );
-  int r = spring_step(stmt);
-  assert(r, SPRING_OK);
-
-  spring_stmt *stmt = spring_prepare(
-    "CREATE PUMP \"pu_filter_oracle\" AS"
-    "  INSERT INTO \"st_trade_oracle\" (\"timestamp\", \"ticker\", \"amount\")"
-    "  SELECT STREAM \"timestamp\", \"ticker\", \"amount\" FROM \"fst_trade\" WHERE \"ticker\" = \"ORCL\";"
-  );
-  int r = spring_step(stmt);
-  assert(r, SPRING_OK);
-
-
-  spring_stmt *stmt = spring_prepare(
-    "CREATE FOREIGN STREAM \"fst_trade_oracle\" ("
-    "  \"ts\" TIMESTAMP NOT NULL,"
-    "  \"ticker\" TEXT NOT NULL,"
-    "  \"amount\" INTEGER NOT NULL"
-    ") SERVER IN_MEMORY_QUEUE;"
-  );
-  int r = spring_step(stmt);
-  assert(r, SPRING_OK);
-
-  spring_stmt *stmt = spring_prepare(
-    "CREATE PUMP \"pu_oracle_to_sink\" AS"
-    "  INSERT INTO \"fst_trade_oracle\" (\"ts\", \"ticker\", \"amount\")"
-    "  SELECT STREAM \"timestamp\", \"ticker\", \"amount\" FROM \"st_trade_oracle\";"
-  );
-  int r = spring_step(stmt);
-  assert(r, SPRING_OK);
-
-  spring_stmt *stmt = spring_prepare(
-    "ALTER PUMP \"pu_filter_oracle\", \"pu_oracle_to_sink\" START;"
-  );
-  int r = spring_step(stmt);
-  assert(r, SPRING_OK);
-}
-
-void query_pipeline(spring_pipeline *pipeline) {
-  spring_stmt *stmt = spring_prepare("SELECT \"ts\", \"ticker\", \"amount\" FROM \"fst_trade_oracle\";");
-
-  for (int i = 0; i < 5; ++i) {
-    int r = spring_step(stmt);
-    assert(r, SPRING_ROW);
-
-    const unsigned char *ts = spring_column_text(stmt, 0);
-    const unsigned char *ticker = spring_column_text(stmt, 1);
-    const int amount = spring_column_text(stmt, 2);
-
-    printf("[row#%d] ts=\"%s\" ticker=\"%s\" amount=%d\n", ts, ticker, amount);
-  }
-}
-
-int main() {
-  // Create a new pipeline
-  spring_pipeline *pipeline = spring_open();
-  assert(pipeline);
-
-  setup_pipeline(pipeline);
-
-  query_pipeline(pipeline);
-
-  // Close the pipeline
-  int r = spring_close(pipeline);
-  assert(r, SPRING_OK);
-
-  return 0;
-}
-```
-
-```bash
-$ gcc springql-embedded.c -lspringql
-$ ./a.out
-
-[row#0] ts="2021-10-28 13:23:34.826434031" ticker="ORCL" amount=100
-...
-[row#5] ts="2021-10-28 13:23:38.354213551" ticker="ORCL" amount=300
-```
+C client, for example, is composed of a header file and a dynamic library.
+See [C client repository](/SpringQL/SpringQL-client-c) for more details on how to use SpringQL in embedded mode.
 
 ### IPC mode