Change to comfy-table (#251)

Signed-off-by: Chojan Shang <[email protected]>

Cargo.toml

@@ -33,7 +33,7 @@ serde_json = { version = "^1.0", features = ["preserve_order"], optional = true
 indexmap = { version = "^1.6", optional = true }
 
 # used to print columns in a nice columnar format
-prettytable-rs = { version = "^0.8", optional = true }
+comfy-table = { version = "4.0", optional = true }
 
 flatbuffers = { version = "=2.0.0", optional = true }
 hex = { version = "^0.4", optional = true }
@@ -96,7 +96,7 @@ io_parquet_compression = [
     "parquet2/brotli",
 ]
 io_json_integration = ["io_json", "hex"]
-io_print = ["prettytable-rs"]
+io_print = ["comfy-table"]
 # the compute kernels. Disabling this significantly reduces compile time.
 compute = []
 # base64 + io_ipc because arrow schemas are stored as base64-encoded ipc format.

src/io/print.rs

@@ -17,8 +17,7 @@
 
 use crate::{array::*, error::Result, record_batch::RecordBatch};
 
-use prettytable::format;
-use prettytable::{Cell, Row, Table};
+use comfy_table::{Cell, Table};
 
 /// Returns a visual representation of multiple [`RecordBatch`]es.
 pub fn write(batches: &[RecordBatch]) -> Result<String> {
@@ -27,14 +26,14 @@ pub fn write(batches: &[RecordBatch]) -> Result<String> {
 
 /// Prints a visual representation of record batches to stdout
 pub fn print(results: &[RecordBatch]) -> Result<()> {
-    create_table(results)?.printstd();
+    println!("{}", create_table(results)?);
     Ok(())
 }
 
 /// Convert a series of record batches into a table
 fn create_table(results: &[RecordBatch]) -> Result<Table> {
     let mut table = Table::new();
-    table.set_format(*format::consts::FORMAT_NO_LINESEP_WITH_TITLE);
+    table.load_preset("||--+-++|    ++++++");
 
     if results.is_empty() {
         return Ok(table);
@@ -46,7 +45,7 @@ fn create_table(results: &[RecordBatch]) -> Result<Table> {
     for field in schema.fields() {
         header.push(Cell::new(field.name()));
     }
-    table.set_titles(Row::new(header));
+    table.set_header(header);
 
     for batch in results {
         let displayes = batch
@@ -61,7 +60,7 @@ fn create_table(results: &[RecordBatch]) -> Result<Table> {
                 let string = displayes[col](row);
                 cells.push(Cell::new(&string));
             });
-            table.add_row(Row::new(cells));
+            table.add_row(cells);
         }
     }